The latest findings made by archaeologists during additional explorations of the South-East Rampart of the Upper Town of the Belgrade Fortress are the remains of the 18th-century blockhouse, a construction most similar to a modern bunker.

The object had two floors, five gun holes and was used to hide the soldiers who were defending the lateral side of the bastion. It was formed in the period when the Belgrade Fortress was occupied by Austrians (1718-1723AD). Archaeologists have found a number of ceramic remains from the Austrian period in this area.