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Tower · Copenhague, Região da Capital
Torre Redonda (Rundetaarn)
The 1642 tower-observatory of Cristiano IV, with a spiral ramp of seven and a half turns, without steps, up to the viewpoint 34.8 metres above the roofs of the centre.
Illustrative images. The pictures in this guide are illustrations based on the real place, not photographs, and may differ from it.
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About Torre Redonda (Rundetaarn)
The Torre Redonda was built between 1637 and 1642 by the order of Christian IV, as an astronomical observatory linked to the Igreja da Trindade (Trinitatis Kirke) and the university library. It is the oldest working observatory in Europe. Instead of stairs, a spiral ramp rises seven and a half turns inside, wide enough for carts; it is said that Tsar Peter the Great rode up it on horseback in 1716.
Halfway up, the Library Hall, above the church nave, was the university's first library and now hosts exhibitions and concerts. Near the top, a glass floor reveals the tower's central void, 25 meters deep. The viewing platform, at 34.8 meters, encircles the tower with an iron railing and looks out over the copper roofs of the city centre, the church towers and the Tivoli.
At the top is the domed observatory, from 1929, with a telescope that is often open to the public on winter nights. On the facade facing Købmagergade, a golden rebus with symbols and Hebrew letters was designed by Christian IV himself.
Before you go
Practical information
Cidade Turismo reviews its information regularly, but something may have changed. Check with the place before planning your trip.
How much time to set aside
30 to 45 minutes to climb, see the Library Hall and the viewing platform.
Best time
Any time of day; in summer late afternoon the light is low over the roofs. telescope observation sessions usually take place on winter nights: check the days.
How to get there
It is on Købmagergade, a 5-minute walk from Strøget and Nørreport station.
Tip
The climb is gentle and suitable for people who have difficulty with steps, but the final stretch to the viewing platform includes a short staircase. Combine the visit with the Torre Redonda, the neighbouring Igreja da Trindade and the Købmagergade up to Strøget.
Get your questions answered
Frequently asked questions about Torre Redonda (Rundetaarn)
Does the Torre Redonda have stairs?
Almost none: the ascent is by a 210‑metre spiral ramp. Only the final section to the viewing platform has a few steps.
How high is the viewing platform?
34.8 metres above street level, with views over the roofs and towers of the centre.
Is the observatory operational?
Yes — the dome telescope usually opens to the public on winter nights. Check before you go.
Who built the tower?
King Cristiano IV, between 1637 and 1642, as the university’s observatory.