The Rundetårn (Round Tower) is a 17th-century tower located in central Copenhagen. One of the many architectural projects of Christian IV, it was built as an astronomical observatory. It is most noted for its 7.5-turn helical corridor leading to the top, and for the expansive views it affords over Copenhagen.

The tower is part of the Trinitatis Complex which also provided the scholars of the time with a university chapel, the Trinitatis Church, and an academic library which was the first purpose-built facilities of the Copenhagen University Library which had been founded in 1482.

Today the Round Tower serves as an observation tower for expansive views of Copenhagen, a public astronomical observatory and a historical monument. In the same time the Library Hall, located above the church and only accessible along the tower's ramp, is an active cultural venue with both exhibitions and a busy concert schedule.



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Founded: 1637
Historical period: Early Modern Denmark (Denmark)


4.5/5 (based on Google user reviews)

User Reviews

Rolf kivisalu (49 days ago)
Neat place with a great view of the city from the observation deck. There was an exhibition with a space theme when we were there. There are a few nice surprises on different floord. Well worth the visit.
Maryla Scotlery (2 months ago)
Great views of Copenhagen all round and good information regarding the history of the tower as it stands today. This was a fun experience. A must to visit while in Copenhagen.
Ani Serobyan (4 months ago)
The best place to see the city from above. The view is amazing. There's also a very interesting science museum inside
Daniel Davidsen (4 months ago)
Was the one thing my GF wanted to see and while I was somewhat reluctant at first we happened to walk past it. But it was easily worth the money. Make sure to visit all the views it has to offer and walk into the core.
Evelin (4 months ago)
It was very interesting to walk inside. The view on the top was amazing despite the rain. There are many interesting things inside on the side as you walk up. I highly recommend. It's a must see!
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