Kungsträdgården metro station in the context of "Blue line (Stockholm Metro)"

The Blue line (Swedish: Blå linjen; officially Metro 3, but called Tub 3 ("Tube 3", or abbreviation for "Tunnelbana 3") internally) is one of the three Stockholm Metro lines. It is 25.5 kilometres (15.8 miles) long, and runs from Kungsträdgården via T-Centralen to Västra skogen where it branches in two, and continues to Hjulsta and Akalla as lines 10 and 11 respectively.