For a bird's-eye view of the entire city, go to the observation deck at the Tyholttårnet, a 124-meter-tall radio tower. 

At 80 meters high is a revolving restaurant, Egon, where you can spend an hour to get a complete rotation for a 360-degree panorama. If you are lucky enough to be there at the right time, this is an exceptional place to view the Northern Lights.