Ukraine - L'viv – the Ensemble of the Historic Centre

"The city of L''viv, founded in the late Middle Ages, was a flourishing administrative, religious and commercial centre for several centuries. The medieval urban topography has been preserved virtually intact (in particular, there is evidence of the different ethnic communities who lived there), along with many fine Baroque and later buildings." 

Source: UNESCO World Heritage

Kornyat Tower of Lviv, Ukraine. This is listed as a UNESCO World Heritage Site. Three different stamps used. Thanks so much to Aleksandra of Ukraine.