• Tanks and cannons outside stand around the museum building, from 17th-century guns to World War II tanks
• Two floors in time order: the first runs up to the end of World War I, the second covers mostly World War II
• The Sava river monitor, a 1904 warship the museum runs, is moored separately at the Sava Pier and opens April to October

The Military Museum sits on a bastion of the Belgrade Fortress at Kalemegdan. Inside, more than 3,000 objects fill 52 rooms: weapons, uniforms, flags and medals tracing Serbian military history from the medieval states to the wars of the 1990s.

Outside, cannons, tanks and armored vehicles from Germany, Italy, Russia, the USA and more stand around the building, including the only surviving Polish TK-3 tankette.