قلعة أوريشيك
Ancient Russian fortress on an island at the source of the Neva from Lake Ladoga. Founded by Novgorodians in 1323. The Treaty of Oreshek with Sweden was signed here. In the 18th-19th centuries — a political prison: Peter I's first wife died here, Decembrist Küchelbecker was imprisoned, Lenin's brother was executed. During WWII, the garrison held for 500 days, preventing complete blockade of Leningrad.
