Fort Rupel is a defensive complex along the Greek-Bulgarian border. Today, there are samples of individual weapons from the Second World War, such as revolvers, pistols, rifles, carbines and automatic weapons, mainly of German origin. Of particular interest is the damaged cannon that was found in the year 2000, as well as one of the two SCODA anti-tank guns that the fort's garrison had.

A special place among the exhibits of the Museum is held by the medals awarded to Officers who played an important role in the battle of the Fort, as well as their uniforms.

In the main hall of the Museum there is an impressive cross-sectional diorama of the galleries of the Fort "RUPEL" to scale.