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

Lhyn Garcia (7 months ago)
Its a fantastic place to go.. its beautiful upstairs you can see the roofs of the colorful houses and church. I recommend that you go when its good weather.
Tilly Star (8 months ago)
So worth going!! Lovely view up the top, not too strenuous of a walk up. A mostly flat walk with stairs at the last part to the very top, and windows all along the spiraling hallway up with lovely views too. Halfway up there was a large room with an amazing art exhibition too. Lovely surprise!
Selin Gürlemez (8 months ago)
No stairs until the top, therefore it's easy to go out. View is nice but it's not very pretty because of the iron railings. Ticket is almost 5.5 Euro.
Katarzyna Jasińska (9 months ago)
I've never seen a steep floor inside the tower instead of the stairs! Tickets for the tower are very affordable and the view of the city is beautiful. On two floors there are interesting exhibitions, permanent - about the historical aspect of the tower and temporary. Very pleasant visit. Highly recommend as a part of sightseeing in Copenhagen.
Thorben Menne (9 months ago)
Well maintained with a nice view over the city, which is unfortunately blocked a little by a quite massive fence. The glass floor over the hollow core is a small highlight. The view into the attic on the intermediate floor could be a bit clearer or the corridor extended further.
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