The Round Tower
Copenhagen, Denmark · Landmark
About The Round Tower
The Round Tower, or Rundetårn, is a historic 17th-century landmark located in the heart of Copenhagen. Commissioned by King Christian IV as an astronomical observatory, it is Europe's oldest functioning facility of its kind. The tower is renowned for its wide spiral equestrian ramp instead of stairs, which leads visitors to an open-air rooftop platform offering sweeping views of the city.
Don't miss
- Ascend the unique spiral equestrian ramp that winds seven and a half times around the hollow core.
- Look through the glass floor into the tower's floating core to peer straight down to the ground.
- Visit the Library Hall halfway up the tower, which once held university books and now hosts contemporary art exhibitions.
- Take in 360-degree panoramic views of Copenhagen's historic rooftops, spires, and plazas from the top observation deck.
Plan your visit
Visit in the late afternoon to catch the warm golden hour light across the city's copper spires. Weekday mornings are also great if you want to avoid crowds on the ramp.
Admission is paid, though tickets are inexpensive and entrance is included with the Copenhagen Card. You can buy tickets on arrival or pre-purchase them online to skip ticket lines during peak summer months.
The tower is situated on the pedestrian street Købmagergade, just a five-minute walk from Nørreport Station. It is also an easy walk from Strøget and Kongens Nytorv.
Tips for visiting
- Wear comfortable walking shoes because the inclined brick ramp provides a steady uphill workout.
- Be prepared for a very narrow, steep spiral staircase at the final stage leading out to the rooftop deck.
- Check the event schedule to see if your visit coincides with a public stargazing night in the working observatory.
- Take time to view the golden rebus riddle on the exterior facade before entering the building.
- Stop by the charming gift shop inside the Library Hall for unique Danish design items and astronomy books.
The Round Tower FAQ
Is the Round Tower wheelchair accessible?
The spiral ramp is technically wide enough for wheelchairs, but it is steep and requires assistance. The final access to the open-air observation platform consists of narrow, steep stairs, making the rooftop inaccessible to wheelchair users.
Why does the tower have a ramp instead of stairs?
The ramp was designed so horses and carts could transport heavy astronomical instruments and large collections of books up to the observatory and library. Russian Tsar Peter the Great famously rode his horse all the way to the top in 1716.
Can visitors use the observatory telescope?
During regular daytime opening hours, visitors can view the historic observatory room and equipment. On select clear evenings during the winter months, the observatory hosts special public stargazing sessions with active telescopes.
Are there restrooms inside the tower?
Yes, restrooms are available inside the tower near the Library Hall. They are modern, clean, and accessible from the main spiral walkway.
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AI-written guide, last updated 2026-10-09. Check opening times and ticket prices on the official website before you go. Photos: MICHOFF, manusama on Pixabay.