Though Helsfyr may not have many top sights, you can venture to the surrounding area to see attractions like Jordal Amfi and Valerenga Church.

While you're in Sagene, take in top sights like Torshovparken or Sagene Church, and hop on the metro to see more of the city at Sandaker Center Tram Station or Torshov Tram Station.

Noted for its museums and shopping, there's plenty to explore in Toyen. Top attractions like Jordal Amfi and Valerenga Church are major draws, and you can hop on the metro at Toyen Station or Toyen T-Bane to see more of the city.

Shopping, restaurants and museums highlight some notable features of Gamle Oslo. Make a stop by MUNCH Museum or Ekebergparken Sculpture Park while you're visiting, and jump aboard the metro at St. Halvards Place Tram Station or Munkegata Tram Station to get around town.

When in Ekeberg and the surrounding area, you'll want to check out sights like Vantage Point Ekeberg or Valerenga Church and hop on the metro to see more of the city at Brattlikollen T-Bane or Brattlikollen Station.

You might take some time to check out the abundant dining options in Grünerløkka. Spend some time visiting top spots like Mathallen Oslo, and catch the metro at Olaf Ryes Place Light Rail Station or Schous Place Light Rail Station to see more of the area.