It replaced the Old Ladoga Canal, built by Peter the Great, which thus became disused and decayed. The canals collectively are known as the Ladoga Canal. The district contains forty-eight cultural heritage monuments of federal significance and additionally seventy-seven objects classified as cultural and historical heritage of local significance. Most of the federal monuments belong to the Shlisselburg Fortress. There are three state museums in the district. The Museum Reserve "Lifting of the Siege of Leningrad", located in the village of Maryino, is located in the area where the Siege of Leningrad was lifted in 1944 after fierce battles, and commemorates this event. The Shlisselburg fortress was converted into a museum and is currently a major tourist attraction of the district. There is also the Shlisselburg Historical Museum, located in Shlisselburg.