The Round Tower

Climb one of Denmark's must iconic structures, the 400-year-old Round Tower. 

After a 209 meter long, winding climb on the Spiral Walk, you're rewarded with a great view over Copenhagen.

The Tower was built by King Christian IV as a tribute to the famous Danish astronomer Tycho Brahe. To this day the Tower is still used as an observatory by amateur astronomers, which makes it the oldest funcioning observatory in Europe.