of the area. There is one national urban park, Kungliga Nationalstadsparken, and three major nature reserves in Stockholm, Kyrksjölöten, Judarskogen and Grimstaskogen while Hansta is likely to become one soon. Transforming the other areas listed below into nature reserves is being investigated, as they all are regarded to be of great recreational and biological value. Judarskogen Kyrksjölöten Hansta Järvafältet Kyrkhamn-Lövsta Grimstaskogen (Grimsta Nature Reserve) Sätraskogen Årstaskogen and Årsta holmar Älvsjöskogen Flaten Hammarbyskogen and Nacka Open-Air Area Fagersjöskogen and Farstanäset Rågsved Open-Air Area Places Riddarfjärden, Riddarholmskyrkan Stockholms ström Gamla Stan Norrmalmstorg Sergels Torg Djurgården, Gröna Lund Norrmalm Östermalm Södermalm Slussen Riddarholmskyrkan Sager House, Rosenbad Stockholm City Hall Royal Palace in Stockholm Divisions Since 1 January 2017, the city is divided into 14 boroughs as regulated by the City Council (before 2017 there were 18 boroughs). In looser terms, the city is also divided into three major parts: Stockholm City Centre (Innerstaden) South Stockholm (Söderort) West Stockholm (Västerort) Surrounding the city is the Stockholm Metropolitan Area. See also Stockholm metro Stockholm archipelago List of islands of Sweden Notes References Schantz, P. 2006. The Formation of National Urban Parks: a Nordic Contribution to Sustainable Development? In: The European City and Green Space; London, Stockholm, Helsinki and S:t Petersburg, 1850-2000 (Ed. Peter Clark), Historical Urban Studies Series (Eds. Jean-Luc Pinol & Richard Rodger), Ashgate Publishing Limited, Aldershot. Islands Islands Stockholm