You can't travel to the area without stopping to admire Kragstotten Sculpture & Viewpoint. This famous feature on the landscape is on most sightseers' to-do lists.
When you've finished exploring this work of art in Holmenkollen, why not check out Oslo Opera House, Karl Johan Gate, and Viking Ship Museum? They're near Kragstotten Sculpture & Viewpoint and also a hit with many tourists.