Vettakollen is a popular hiking spot in Oslo, Norway, known for its stunning views over the city and Oslofjord. It's a moderate hike due to the steady incline, but in about 40 minutes you'll be rewarded with a gret view.
Start by Vettakollen metro stop. If you want to keep going, head on to Fuglemyrhytta where you can even stay overnight (book through DNT).