Oslo has seven T-bane (subway) lines, which converge at Stortinget Station. The four eastern lines all stop at Tyen before branching off, whereas the four western lines run through Majorstuen before emerging aboveground for the rest of their routes to the northwestern suburbs. Tickets can be purchased at the stations.
Trafikanten (public transportation information, Jernbanetorget, Sentrum. 815/00-176; 177 within Oslo. www.trafikanten.no. Weekdays 7 AM-8 PM, weekends 8-6).