Modlin Fortress | Day Trips
Situated in the town of Nowy Dwór Mazowiecki, 30km north-west of Warsaw, is the 19th century Modlin Fortress (Twierdza Modlin), with a collection of barracks, which in total amount to 2,250m - the longest building in Europe. It is here at the meeting point of two rivers, the Narew and Vistula, t
Source: inyourpocket.com