Kaunas Fortress is the remains of a fortress complex in Kaunas, Lithuania. It was constructed and renovated between 1882 and 1915 to protect the Russian Empire's western borders, and was designated a "first-class" fortress in 1887. During World War I, the complex was the largest defensive structure in the entire state, occupying 65 km2 (25 sq mi)
At the moment the military equipment used by the Lithuanian army is exhibited in the fort. These include ship cannons, radars, various trucks, tanks and tankets, airplanes, engineering equipment, a military hospital car - a total of over 150 exhibits.
