Fort Rupel is a defensive complex along the Greek-Bulgarian border. Today, there are samples of individual weapons from the Second World War era, such as revolvers, pistols, rifles, carbines and automatic weapons, mainly of German origin.

Of particular interest is the damaged cannon found in the year 2000, as well as one of the two SCODA anti-tank guns that the garrison of the fort had. A special place among the exhibits of the Museum is occupied by the medals - medals awarded to Officers who played an important role in the battle of the Fort.