We are visiting Oslo at the end of a trip to Sweden. We will be in Oslo for 2 days and would like to know what the highlights are in Oslo for a 2 day trip.
The highlights of Oslo are the 4 museums-Viking, Folk, Fram and Kon-Tiki and the Vigeland sculputure park. Get a guidebook for other suggestions.
Akerhus Fortress has the Armed Forces museum and the Resistance Museum.
Aker Brygge has interesting places for dinner.
Sitting in an outdoor cafe on Karl Johans Gate is good place for a drink and to watch people.
Husfliden in the GlasMagasinet department store. Husfliden specializes in traditional Norwegian crafts and clothing. The real deal where Norwegians shop for their Bunads! When I was spending a lot of time in Norway I did a lot Christmas shopping for my wife here.
Ditto on what the above posters said. Additionally, depending on time available and interests, I might suggest taking a selfie in front of Munch's world-famous painting - "The Scream" - at the National Museum. Then have a coffee or pint and rub elbows with the ghosts of Munch, Grieg (when he's in town, being a Bergen-ite), and Ibsen at the Grand Hotel's outdoor cafe on Karl Johans Gate. If you have an interest in the Nobel Peace Prize, it's presented every December at the city hall (Rådhuset) which is open to the public (at certain hours). And there's also a museum that includes info on all previous winners a short walk away at the beginning of Aker Brygge. Speaking of which, you might try the "Smaken av Norge" ("Taste of Norway") meal at the Rorbua restaurant should you decide to stroll down the wharf.
We were in Oslo for 2 days in February. There is a lot of construction going on so check the museum websites before venturing out. The art museum was completely closed and parts of the history museum were also closed. We enjoyed a guided tour of the Opera House and visited the Peace Museum. We walked around the waterfront and explored the Fortress and military museum. We also walked around the Royal Palace and some did some sightseeing/shopping on Karl Johans Gate (main shopping area). Nice city, felt very safe. Have fun!