Västerlånggatan and Österlånggatan are the district’s main streets. The city wall that once surrounded the city ran inside these streets along what is now Prästgatan. In the middle of Gamla Stan is Stortorget, the oldest square in Stockholm.
Stortorget is the central point from which runs Köpmangatan, the oldest street in Stockholm, which was mentioned as early as the fourteenth century. Mårten Trotzigs gränd (Mårten Trotzigs alley) is hard to find.
It’s the narrowest alley in Gamla Stan, only 90 centimeters wide at its narrowest point.
The Riddarholmen Church ,the church is a royal burial grounds and was built as a Franciscan monastery for the so-called Grey Brother monks in the thirteenth century.