Riddarfjärden
Riddarfjärden (, "The Knight Firth") is the easternmost bay of Lake Mälaren in central Stockholm. Stockholm was founded in 1252 on an island in the stream where Lake Mälaren (from the west) drains into the Baltic Sea (to the east); today the island is called Stadsholmen and constitutes Stockholm's Old Town.
Stockholm City Museum
The Stockholm City Museum () is a museum documenting, preserving and exhibiting the history of Stockholm. The museum is housed in Södra Stadshuset at Slussen on Södermalm. The building was completed in 1685. In the 1930s the museum moved in and opened to the public in 1942.
The museum is the largest municipal museum in Sweden, and houses collections which include 300,000 items of historical interest; 20,000 works of art and 3 million photographs. The City Museum closed for renovation January 12, 2015 and will open again in 2019.