My UNESCO World Heritage Postcards

Slovakia - Wooden Churches of the Slovak part of the Carpathian Mountain Area

"The Wooden Churches of the Slovak part of Carpathian Mountain Area inscribed on the World Heritage List consist of two Roman Catholic, three Protestant and three Greek Orthodox churches built between the 16th and 18th centuries. The property presents good examples of a rich local tradition of religious architecture, marked by the meeting of Latin and Byzantine cultures. The edifices exhibit some typological variations in their floor plans, interior spaces and external appearance due to their respective religious practices. They bear testimony to the development of major architectural and artistic trends during the period of construction and to their interpretation and adaptation to a specific geographical and cultural context. Interiors are decorated with paintings on the walls and ceilings and other works of art that enrich the cultural significance of the properties."

Source: UNESCO World Heritage

Postcard 1 - Tvrdosin

Roman Catholic Gothic church of All Saints in Tvrdošín was built in the second half of the 15th century and modified in a Renaissance style in the 17th century. Baroque main altar depicting All Saints is from the end of the 17th century. Thanks to Radek of Czech Republic.

Postcard 2 - Lestiny
Lestiny is one of the 8 wooden churches in Slovakia listed in UNESCO World Heritage Site. Thanks to Natasa of Slovakia.

India - Ancient Buddhist Site of Sarnath (2026)

"The serial property contains the architectural and archaeological remains of Sarnath, the sacred site where the Buddha is believed to have delivered his first sermon in the 6th century BCE and met his earliest disciples. Identified by the Buddha himself as one of the four principal Buddhist pilgrimage sites, Sarnath grew over many centuries through royal, monastic, and lay patronage, resulting in the construction of numerous stupas, temples, and viharas. After flourishing as a major Buddhist centre, Sarnath declined in the 12th century CE and fell into obscurity until its rediscovery in the 18th century. Today preserved as two archaeological zones, it remains both an important tourist destination and a revived pilgrimage site for Buddhists worldwide."

Source: UNESCO World Heritage Site

Ancient Buddhist Site of Sarnath is India UNESCO World Heritage Site inscribed in 2026. Thanks to Gururaj of India.

Rwanda - Memorial sites of the Genocide: Nyamata, Murambi, Gisozi and Bisesero

Between April and July 1994, an estimated one million people were killed across Rwanda by armed militias called Interahamwe that targeted Tutsi, but also executed moderate Hutu and Twa people. The victims of the genocide are commemorated in this serial property composed of four memorial sites. Two of the component parts were scenes of massacres: a Catholic church built in the hill of Nyamata in 1980, and a technical school built in the hill of Murambi in 1990. The hill of Gisozi in Kigali City hosts the Kigali Genocide Memorial built in 1999, where more than 250,000 victims have been buried, while the hill of Bisesero in the Western Province hosts a memorial built in 1998, to remember the fight of those who resisted their perpetrators for over two months before being exterminated.

Source: UNESCO World Heritage Site

Postcard 1
Nyamata Church Genoricide Memorial in Rwanda - a UNESCO World Heritage Site. Postcard was missent to India and damaged by water - but luckily it arrived. Thanks to Karolyn of USA.

Postcard 2
Kigali Genocide Memorial. Rwanda Kigali Postcrossing Meet on July 7th-9th, 2026. Thanks to Noklet of Hanko of Germany.

Poland - Gdynia Modernist City Centre

"Located on the Baltic Sea coast, “Gdynia Modernist City Centre” encompasses the two most significant east-west and north-south streets, featuring interwar planning blocks and the majority of the city centre’s preserved buildings from that period, which reflect the large-scale application of modernist ideas in architectural design. The result is an urban organism that harnesses a building-block-based planning approach to develop a characteristic, compact complex of modernist architecture, with robust individual architectural expressions. The city centre, with its buildings, villas on Kamienna Góra hill, and other residential buildings of this period, illustrates a critical break with historicism in the progression of turning the village of Gdynia into a new major sea gateway of the first Polish Republic between the First and Second World Wars."

Source: UNESCO World Heritage Site

Postcard 1
Postcard of illuastration of Hundsdorff House (often spelled Kamienica Hundsdorffów) is one of the most iconic pre-war modernist buildings in Gdynia, Poland. It is located in the city center at the intersection of Starowiejska 7 and Abrahama streets. It is now a UNESCO World Heritage Site. Thanks to Marcel of Germany.

Postcard 2
Sea Towers and Port Jachtowy, Gydnia, Poland. It is a new UNESCO World Heritage Site. Thanks to Marcel of Germany.

Wanted: UNESCO World Heritage

August 30, 2026 Update

WANTED: Anyone can help me with any of these… self-printed postcards if written stamped from country of origin is OK:

EUROPE
= Albania - Transnational - Natural and Cultural Heritage of the Ohrid region
= Azerbaijan - Transnational - Hyrcanian Forests
= Belgium - Transnational - Primeval Beech Forests of the Carpathians and Other Regions of Europe (swap arranged)
= Bosnia and Herzegovina - Transnational - Primeval Beech Forests of the Carpathians and Other Regions of Europe
= Bosnia and Herzegovina - Vjetrenica Cave, Ravno
= Bulgaria - Transnational - Primeval Beech Forests of the Carpathians and Other Regions of Europe
= Czechia - Transnational - Ukraine Primeval Beech Forests of the Carpathians and Other Regions of Europe
= Denmark - Møns Klint (2025)
= Denmark - The Bony Fish Fossils of the Western Limfjord – Evolution and Climate Adaptation in the Earliest Eocene (2026)
= France - Transnational - Primeval Beech Forest (2021)
= France - Transnational - Prehistoric Pile Dwellings around the Alps
= Greece - The wider area of Mount Olympus (2026)
= Greece - Zagori Cultural Landscape
= Italy - Funerary Tradition in the Prehistory of Sardinia – The domus de janas (2025)
= Italy - The system of Italian-style condominio theatres of the 18th and 19th centuries in Central Italy (2026)
= Latvia - Transnational - Struve Geodetic
= Montenegro - Transnational - Primeval Beech Forest (inscribed 2021)
= North Macedonia - Transnational - Primeval Beech Forest (2021)
= Romania - Frontiers of the Roman Empire – Dacia
= Romania - Transnational - Primeval Beech Forest
= Russia - Astronomical Observatories of Kazan Federal University
= Russia - Rock Paintings of Shugal-Tash Caves - swap arranged
= Serbia - Transnational - Primeval Beech Forest (2021)
= Serbia - Transnational - Stećci Medieval Tombstones
= Slovakia - Transnational - Primeval Beech Forest (2021)
= Slovenia - Transnational - Primeval Beech Forest
= Switzerland - Transnational - Primeval Beech Forest (2021)
= Turkiye - Arslantepe Mound (2021)
= Turkiye - Gordion
= Turkiye - Sardis and the Lydian Tumuli of Bin Tepe (2025)
= Turkiye - Wooden Hypostyle Mosques of Medieval Anatolia
= United Kingdom - Transnational - Moravian Church Settlements (2024)

ASIA
= Cambodia - Cambodian Memorial Sites: From centres of repression to places of peace and reflection (2025)
= India - Ancient Buddhist Site of Sarnath (2026) - swap arranged
= India - Maratha Military Landscapes of India (2025) - swap arranged
= Iran - Alamūt Castle and Related Fortifications (2026)
= Iran - Hegmataneh
= Iran - Prehistoric Sites of the Khorramabad Valley (2025)
= Iran - Susa
= Iran - The Persian Caravanserai (2022-23)
= Iran - Trans-Iranian Railway (2021)
= Iraq - Ashur - Qal’at Sherqat (swap arranged)
= Israel - Caves of Maresha and Bet-Guvrin in Judean Lowlands as a Microcosm of Land of Caves
= Jordan - Aqaba Marine Reserve (2026)
= Jordan - As-Salt - The Place of Tolerance and Urban Hospitality
= Jordan - Umm Al-Jimāl
= Kazakhstan - Rock Mosques and Associated Sacred Sites of Mangystau (2026)
= Kazakhstan - Transnational - Western Tien-Shan
= Lebanon - The Rachid Karameh International Fair of Tripoli (2023)
= Lebanon - Mount Amel Castles (2026)
= Mongolia - Transnational - Uvs Nuur Basin
= Mongolia - Transnational - Landscapes of Dauria
= Mongolia - The Cemetery Complexes of the Xiongnu Nobility (2026)
= Mongolia - Deer Stone Monuments and Related Bronze Age Sites (2022-23)
= Palestine - Sebastia (2026)
= Palestine - Ancient Jericho/Tell es-Sultan (2022-23)
= Palestine - Land of Olives and Vines - Cultural Landscape of Southern Jerusalem, Battir
= Palestine - Saint Hilarion Monastery/ Tell Umm Amer
= Saudi Arabia - Al-Ahsa Oasis, an evolving Cultural Landscape
= Saudi Arabia - Ḥimā Cultural Area (2021)
= Saudi Arabia - The Cultural Landscape of Al-Faw Archaeological Area
= Saudi Arabia - ‘Uruq Bani Ma’arid
= South Korea- Gaya Tumuli (2022-23）
= South Korea - Getbol, Korean Tidal Flat (2021)
= South Korea - Petroglyphs along the Bangucheon Stream (2025)
= South Korea - Seowon, Korean Neo-Confucian Academies
= Tajikistan - Transnational - Silk Roads: Zarafshan-Karakum Corridor (Inscribed 2022+23)
= Tajikistan - Tugay forests of the Tigrovaya Balka Nature Reserve (2022+23)
= Tajikistan- Cultural Heritage Sites of Ancient Khuttal (2025)
= Turkmenistan - Transnational - Silk Roads: Zarafshan-Karakum Corridor (2022-23)
= Turkmenistan - Transnational - Cold Winter Deserts of Turan (2022- 23)
= United Arab Emirates - Wadi Wurayah (2026)
= United Arab Emirates - Faya Palaeolandscape (2025)
= Uzbekistan - Tashkent Modernist Architecture. Modernity and Tradition in Central Asia (2026) - (swap arranged)
= Uzbekistan - Transnational - Cold Winter Deserts of Turan
= Uzbekistan - Transnational Western Tien-Shan (2016)
= Vietnam - Yen Tu-Vinh Nghiem-Con Son, Kiep Bac Complex of Monuments and Landscapes (2025)
= Yemen - Landmarks of Ancient Kingdom of Saba, Marib (2023)

AUSTRALIA - PACIFIC OCEAN
= Micronesia - Nan Madol: Ceremonial Centre of Eastern Micronesia
= Papua New Guinea - Kuk Early Agricultural Site (Western Highlands of PNG)
= Vanuatu- Chief Roi Mata’s Domain (islands of Efate, Lelepa, Artok)

NORTH - CENTRAL AMERICA - CARIBBEAN
= Canada - Anticosti
= Costa Rica - Cocos Island National Park
= Costa Rica - Precolumbian chiefdom settlements with stone spheres of Diquís
= Guatemala - National Archaeological Park Tak’alik Ab’aj
= Honduras - Río Plátano Biosphere Reserve
= Jamaica - The Archaeological Ensemble of 17th Century Port Royal ((2025)
= Mexico - Mexico - Wixárika Route through Sacred Sites to Wirikuta -Tatehuarí Huajuyé (2025)

SOUTH AMERICA
= Argentina - Transnational - Qhapaq Nan, Andean Road System
= Argentina - Transnational - Architectural Work of Le Corbusier: Curutchet House in La Plata
= Argentina - ESMA Museum and Site of Memory – Former Clandestine Center of Detention, Torture and Extermination (2022-23)
= Argentina - Los Alerces National Park
= Bolivia - Transnational - Qhapaq Nan, Andean Road System
= Brazil - Peruaçu River Canyon (2025)
= Chile - Settlement and Artificial Mummification of the Chinchorro Culture in the Arica and Parinacota Region
= Colombia - Chiribiquete National Park – “The Maloca of the Jaguar”
= Colombia - Los Katíos National Park
= Colombia - Cocos Island National Park
= Colombia - Precolumbian chiefdom settlements with stone spheres of the Diquís
= Ecuador - Transnational - Qhapaq Nan, Andean Road System
= Peru - Chankillo Solar Observatory and ceremonial center (2021)
= Suriname - Jodensavanne Archaeological Site: Jodensavanne Settlement and Cassipora Creek Cemetery
= Uruguay - The Work of engineer Eladio Dieste: Church of Atlántida (2021)

AFRICA
= Angola - Mbanza Kongo, Vestiges of the Capital of the former Kingdom of Kongo
= Benin - Transnational - Koutammakou, the Land of the Batammariba (2022-23)
= Burkina Faso - Ancient ferrous metallurgy sites of Burkina Faso (2019)
= Burkina Faso - Royal Court of Tiébélé (2024)
= Burkina Faso - Transnational - Arly National Park
= Cameroon - Transnational - Sangha Trinational - Lobeké National Park
= Cameroon - Dja Faunal Reserve
= Cameroon - Diy-Gid-Biy Cultural Landscape of the Mandara Mountains (2025)
= Central African Republic- Manovo-Gounda St Floris National Park
= Congo, DR - Okapi Wildlife Reserve
= Congo, Republic - Forest Massif of Odzala-Kokoua (2022-23)
= Congo, Republic - Transnational - Sangha Trinational - Nouabalé-Ndoki National Park
= Cote d’Ivoire - Transnational - Mount Nimba Strict Nature Reserve
= Cote d’Ivoire - Comoé National Park
= Côte d’Ivoire - Sudanese style mosques
= Cote d’Ivoire - Taï National Park
= Egypt - Abu Mena (near Alexandria)
= Egypt - Wadi Al-Hitan - Whale Valley (150km southwest Cairo)
= Ethiopia - Bale Mountains National Park
= Ethiopia- Lower Valley of the Omo
= Ethiopia - Melka Kunture and Balchit: Archaeological and Palaeontological Sites in the Highland Area of Ethiopia
= Ethiopia - The Gedeo Cultural Landscape (2022-23)
= Gabon - Ecosystem and Relict Cultural Landscape of Lopé-Okanda
= Gabon - Ivindo National Park (2021)
= Gambia - Kunta Kinteh Island and Related Sites
= Guinea-Bissau - Coastal and Marine Ecosystems of the Bijagós Archipelago - Omatí Minhô (2025)
= Kenya - The Historic Town and Archaeological Site of Gedi
= Kenya - Sacred Mijikenda Kaya Forests
= Lesotho - Transnational - Sehlabathebe National Park
= Malawi - Mount Mulanje Cultural Landscape (2025)
= Mauritania- Banc d’Arguin National Park
= Mozambique- Island of Mozambique
= Mozambique - Maputo National Park (2025)
= Niger - Historic Centre of Agadez
= Sierra Leone - Gola-Tiwai Complex (2025)
= South Africa - Human Rights, Liberation and Reconciliation: Nelson Mandela Legacy Sites
= South Africa - Mapungubwe Cultural Landscape
= South Africa - The Emergence of Modern Human Behaviour: The Pleistocene Occupation Sites of South Africa
= South Africa - The Historic Town and Archaeological Site of Gedith
= South Africa - ǂKhomani Cultural Landscape
= Sudan - Sanganeb Marine National Park and Dungonab Bay - Mukkawar Island Marine National Park
= Tanzania - Kondoa Rock Art Sites (north, near Arusha)

Argentina, Belgium, France, Germany, India, Japan, Switzerland - The Architectural Work of Le Corbusier, an Outstanding Contribution to the Modern Movement (2016 Inscribed)

"Chosen from the work of Le Corbusier, the 17 sites comprising this transnational serial property are spread over seven countries and are a testimonial to the invention of a new architectural language that made a break with the past. They were built over a period of a half-century, in the course of what Le Corbusier described as “patient research”. The Complexe du Capitole in Chandigarh (India), the National Museum of Western Art, Tokyo (Japan), the House of Dr Curutchet in La Plata (Argentina) and the Unité d’habitation in Marseille (France) reflect the solutions that the Modern Movement sought to apply during the 20th century to the challenges of inventing new architectural techniques to respond to the needs of society. These masterpieces of creative genius also attest to the internationalization of architectural practice across the planet."

Source: UNESCO World Heritage

Todate, I have collected postcards from 6 out of 7 countries and 7 out of the 17 sites.

INDIA:
1) Complexe du Capitole

JAPAN:
2) Musée National des Beaux-Arts de l’Occident

BELGIUM:
3) Maison Guiete

GERMANY:
4) Maisons de la Weissenhof-Siedlung

SWITZERLAND:
5) Petite villa au bod du lac Leman
6) Immeuble Clarte

FRANCE:
7) Chapelle Notre-Dame-du-Haut de Ronchamp
8) Unité d’habitation Marseille
9) Maisons La Roche et Jeanneret (wanted)
10) Cité Frugès (wanted)
11) Villa Savoye et loge du jardiner (wanted)
12) Immeuble locatif à la Porte Molitor (wanted)
13) La Manufacture à Saint- Dié (wanted)
14) Cabanon de Le Corbusier (wanted)
15) Couvent Sainte-Marie-de-la-Tourette (wanted)
16) Maison de la Culture de Firminy (wanted)

ARGENTINA:
17) Maison du docteur Curutchet (wanted)

Postcard 1A - INDIA
Chandigarh Capitol Complex, India. Thanks to Pulkit of India.

Postcard 1B - INDIA

The Capitol Complex in Chandigarh, India designed by Le Corbusier. Thanks to Prasanth of India.

Postcard 2 - JAPAN

I visited this museum in Ueno Park, Tokyo to view the Vatican collection exhibit of Early Rennaisance Italian Art. The National Museum of Western Art, Tokyo is designed by Le Corbusier. Thanks to Aki of Japan.

Postcard 3 - BELGIUM

Maison Guiette, Belgium. Thanks to Hanko of Germany who took this photograph and printed this postcard.

Postcard 4A- GERMANY

Interior view of Weiseenhofmuseum im Haus le Corbusier, Stuttgart. Thanks to Stephanie of Germany.

Postcard 4B- GERMANY

Left bottom of multi-view postcard showing Maisons de la Weiseenhof-Siedlung of Stuttgart. Thanks to Liane of Germany.

Maisons de la Weissenhof-Siedlung, Stuttgart - one of the Architectural Works of Le Corbusier, an Outstanding Contribution to the Modern Movement - a UNESCO World Heritage site. Nice "piper" stamp used. Thanks to Marcel of Germany who visited Stuttgart, Germany. Mailed out on June 18, 2021 and arrived in Penang island on July 6, 2021.

Postcard 5 - SWITZERLAND

Villa Le Lac. Petite villa au bord du lac Léman. Thanks to Oscar of Switzerland.

Postcard 6 - SWITZERLAND

Immeuble Clarté, Switzerland. Thanks to Thibaut of Switzerland.

Postcard 7A - FRANCE

Chapelle de Ronchamp, France. Thanks to Chrizine of Switzerland.

Postcard 7B - FRANCE

Chapelle Notre-Dame-du Haut, Ronchamp, France is part of UNESCO World Heritage architectural works by Le Corbusier. Thanks to Jean-Pierre of France.

Postcard 8 - FRANCE

Unite d'Habitation, Marseille, France. Thanks to Chrizine of Switzerland.

Postcard 9 - FRANCE

Postcard bought in Beaubourg Museum, Paris. Thanks to Sylvie of France.

Kazakhstan - Petroglyphs within the Archaeological Landscape of Tamgaly

"Set around the lush Tamgaly Gorge, amidst the vast, arid Chu-Ili mountains, is a remarkable concentration of some 5,000 petroglyphs (rock carvings) dating from the second half of the second millennium BC to the beginning of the 20th century. Distributed among 48 complexes with associated settlements and burial grounds, they are testimonies to the husbandry, social organization and rituals of pastoral peoples. Human settlements in the site are often multilayered and show occupation through the ages. A huge number of ancient tombs are also to be found including stone enclosures with boxes and cists (middle and late Bronze Age), and mounds (kurgans) of stone and earth (early Iron Age to the present). The central canyon contains the densest concentration of engravings and what are believed to be altars, suggesting that these places were used for sacrificial offerings." Source: UNESCO World Heritage

Postcard 1
Petroglyphs of Tamgaly. Thanks to Nina of Russia for arranging to send this postcard from Kazakhstan with Kazakhstan postcrossing stamp.

Postcard 2

Postcard showing the petrogylph rock carvings of Tamgaly Gorge, Kazakhstan. Thanks to Jo who was in Kazakhstan and sent this card from Vietnam.

Postcard 3
Petroglyphs ancient rock drawings at Tamgaly, Kazakhstan. It is a UNESCO World Heritage Site. Thanks to Yuliya of Belarus.

China - Kazakhstan - Kyrgyzstan - Silk Roads - the Routes Network of Chang'an-Tianshan Corridor

"Silk Roads: the Routes Network of Chang'an-Tianshan Corridor is a 5,000 kilometre section of the extensive Silk Roads network, stretching from Chang’an/Luoyang, the central capital of China in the Han and Tang Dynasties, to the Zhetysu Region of Central Asia. It took shape between the 2nd century BC and 1st century AD and remained in use until the 16th century, linking multiple civilizations, and facilitating far-reaching exchanges of activities in trade, religious beliefs, scientific knowledge, technological innovation, cultural practices and the arts. The 33 components included in the routes network include capital cities and palace complexes of various empires and Khan kingdoms, trading settlements, Buddhist cave temples, ancient paths, posthouses, passes, beacon towers, sections of The Great Wall, fortifications, tombs and religious buildings.

There are a total of 33 sites listed which are 25 archaelogical sites; 3 historical buildings; 1 tomb; 4 cave temples. Plus two which are already inscribed UNESCO World Heritage (Longmen grottoes and Magao Caves).

CHINA - CENTRAL CHINA
- Luoyang City, Eastern Han-Northern Wei Dynasty (1st – 6th AD) (Luoyang, Henan)
- Dingding Gate, Luoyang City, Sui -Tang Dynasties (Luoyang, Hena)
- Longmen grottoes (already inscribed on the World Heritage list) - have postcard
- Han’gu pass (Henan)
- Shihao section of Xiaohan route (Henan)
- Weiyang Palace, Chang’an City, Western Han Dynasty (2nd BC – 1st AD) (Xian)
- Daming Palace, Chang’an City, Tang Dynasty (7th -10th AD) (Xian)
- Great Wild Goose Pagoda (Xian)
- Small Wild Goose Pagoda (Xian)
- Xingjiaosi Pagodas (Xian)
- Bin county cave temple (Shaanxi)
- Zhang Qian tomb (Shaanxi)
- Maijishan cave temple complex - have postcard

CHINA - HOSI CORRIDOR
- Bingling cave temple complex (Gansu)
- Xuanquan posthouse (Gansu)
- Suoyang city (Gansu)
- Mogao caves (already inscribed on the World Heritage List) - have postcard
- Yumen pass (Gansu)

CHINA - NORTH, SOUTH TIANSHAN MOUNTAINS
- Qocho City (Turpan, Xinjiang)
- Yar City Site of Bashbaliq City (Turpan, Xinjiang)
- Kizil cave temple (Jimshar, Xinjiang) - have postcard
- Subash Buddhist temple (Kuqa, Xinjiang)
- Kizilgaha Beacon tower (Kuqa, Xinjiang)
- Bachbaliq city (Kuqa, Xinjiang)

KAZAKHSTAN - ZHETYSU REGION
- Kayalyk (Almaty Province)
- Talgar (Almaty Province)
- Karamergen (Almaty Province)
- Aktobe (Jambyl Province)
- Kulan (Jambyl Province)
- Ornek (Jambyl Province)
- Kostobe (Jambyl Province)
- Akyrtas (Jambyl Province)

KYRGZSTAN - ZHETSYU REGION
- Suyab (Site of Ak-Beshim) (Chuy Province)
- City of Balasagun (Site of Burana) - have postcard
- City of Nevaket (Site of Krasnaya Rechka) (Chuy Province)

Source: UNESCO World Heritage

A - KAZAKHSTAN - AKYRTAS

Postcard 1
Akyrtas Archeological Complex is part of UNESCO World Heritage Site of Silk Roads: The Routes Network of Chang'an-Tianshan Corridor in Kazakhstan. Thanks to Yuliya of Belarus.

B - KYRGYZSTAN - BURANA

Postcard 1
Burana Tower, a surviving remnant of ancient city of Balasagun, on a clear day with majestic view of Kyrgyz Alatau mountains. Thanks to DAO of United Kingdom who visited Kyrgzstan.

C - CHINA - YUMEN PASS, GANSU

Postcard 1
Yumen Pass in Gansu. Nice Silk Road stamps with special cancellation. Thanks to Wu of China.

CHINA - MAJISHAN CAVE TEMPLE COMPLEX, GANSU

Majishan Cave Temple Complex, Gansu, China. I bought these two Maji-shan postcards in Shanghai in November 2011.

Postcard 2A

Postcard 2B

C - CHINA - LONGMEN GROTTOES, HENAN

Postcard 3A
The first postcard is from the postcard set of World Heritages of China that I bought in Beijing - Longmen Grottoes.

Postcard 3B

C - CHINA - MOGAO CAVES. GANSU

Postcard 4A
Mogao Caves of Dunhuang, Gansu is one of China's UNESCO World Heritage Sites. Beautiful cave paintings. Very nice island and butterfly stamps used. Postage was surface mail. Thanks so much to Xingshan of Zhongshan, China.