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.
Architecture in Stockholm
The oldest part of Stockholm is Gamla Stan ("The Old Town"), which contains some of the city's oldest buildings and ruins. One example is the ruins of the Castle Of Three Crowns, which was erected in the 13th century by the Swedish king Birger Jarl.