Some of the main Oslo sights and attractions:
(Have bus no. 30 to Museum of Culture History, walk next door for the Viking Ships, bus to end stop or a 10-15 mins walk downhill to Kon-Tiki, Fram and Maritime museums; then ferry return to City Hall pier):
Museum of Culture History (Open air)
Kon-Tiki (Thor Heyerdahl explorations)
CITY CENTRE
Resistance Museum (WW II - At Akershus)
Karl Johan (Main street with Royal Palace, University, National Theatre and Parliament)
Aker Brygge (Shipyard turned into a shopping mall with restaurants etc.)
OSLO EAST
OSLO WEST
Holmenkollen Ski Junp arena (being rebuilt at present; will be open next year)
OSLOFJORD
Fjord trip (incl. visit on Hovedoya - the island closest to the city with medieval ruins of monastery)
Gressholmen (neighbouring island to Hovedoya)
DAY TRIPS ON THE FJORD FROM OSLO
Drøbak (coastal village by the fjord)
For more inmformation about Oslo - what's on when you are visiting; info about Oslo Pass - useful if you travel by public transport and visit many museums etc.)