Plzeň is a city in western Bohemia in the Czech Republic, the capital of Plzeň Region and the fourth most populous city in the Czech Republic. It is known worldwide for the production of Pilsner beer. Other main sights of the city are: the Gothic St. Bartholomew's Cathedral, founded in the late 13th century, the tower of which (102.26 m) is the highest in the Czech Republic, the Renaissance Town Hall, and the Moorish Revival Great Synagogue, the second largest synagogue in Europe.
There is also a 20 km historic underground tunnel network, among the longest in Central Europe. Part of the tunnel is also open for the tourists.
Thanks to Katka for this nice postcard and two cute stamps :)