We went with Stanislav and my wife to the National Museum of Military History (Sofia Bulgaria). It is located on address Bulgaria, Sofia 1505 92 Cherkovna Str. The Military museum is probably the biggest on the balkans 4 floors building full of military history dating back to ancient times (of creating Bulgarian country in 681 through byzantine history, medieval war tools, turkish liberation wars, the Balkan War, World War I, World War II, The Cold War. The museum is mostly interesting to see it costs only 4 euro per person and there is a family ticket of 5 euro for whole family. Outside of the museum even if you don’t pay you can see a lot of tanks, aircrafts and warfare. It was a good day thanks God 🙂