The Stockholm Metro crossing the Centralbron bridge near Gamla Stan

View of The Stockholm Metro crossing the Centralbron bridge near Gamla Stan. The Stockholm Metro (Tunnelbana) crosses the iconic 1.2-kilometer Centralbron bridge system on its route between Gamla stan metro station and Slussen. The open-air crossing takes about 30–35 seconds, offering breathtaking panoramic views of the City Hall (Stadshuset) and Riddarholmen.