In the 1880s, the empire began large-scale construction works on the construction of the fortifications of Krivošije defense zone. The first thing that was done was a network of roads, which were initially used to deliver construction materials. Later, they were used by the army and the locals. The works and breaking through the inaccessible rocks and mountain ranges, which until then had been difficult to cross on foot or on horseback, took place amazingly fast. Although the roads bridged large altitude difference, they never exceeded 15 degrees of inclination. In 104 years of rule, Austria-Hungary built a complete road network in Boka and the hinterland, which is still used today with minor modifications. The photo, which shows the beauty of the mountain ranges above the Risan Bay, also speaks of the difficulty of the terrain through which numerous serpentines pass.