The Round Tower in Copenhagen: A Spiraling Icon of History and Discovery

Introduction

Right in the heart of Copenhagen’s old town rises one of Denmark’s most unique and beloved landmarks—The Round Tower (Rundetårn). Built in the 17th century under the rule of King Christian IV, this striking cylindrical tower has served as an astronomical observatory, library, and a center for science and art. Today it stands as a perfect blend of history, architecture, and panoramic beauty.

What makes the Round Tower truly special is its spiral ramp, a 209-meter helical corridor that gently winds up to the observation deck. From the top, visitors are rewarded with breathtaking 360-degree views of Copenhagen’s skyline—rooftops, church spires, and the colorful Nyhavn harbor.

Whether you are fascinated by astronomy, love elegant Renaissance architecture, or simply enjoy incredible city views, the Round Tower is a must-visit. It’s a living monument where history and culture meet, offering exhibitions, concerts, and a unique perspective on the Danish capital.

What is The Round Tower in Copenhagen famous for?

The Round Tower is famous for its spiral ramp, an architectural marvel that allows visitors to ascend without stairs, and for being Europe’s oldest functioning observatory. It is also celebrated as a cultural hub hosting art exhibitions and concerts in its old library hall.

Why should you visit The Round Tower?

You should visit the Round Tower to:

Climb the spiral ramp for one of the best panoramic views of Copenhagen.

Explore a historic observatory that has been studying the stars since 1642.

Enjoy rotating art exhibitions and classical music concerts inside the historic library hall.

Admire Renaissance architecture that beautifully combines form and function.

It’s a perfect mix of science, art, and urban sightseeing—ideal for families, couples, and curious travelers alike.

What are the opening hours and best times to visit The Round Tower?

🕒 Opening Hours (check their official website for seasonal changes):

Summer (May–September): 10:00 AM – 8:00 PM

Winter (October–April): 10:00 AM – 6:00 PM

🌅 Best Times to Visit:

Visit early in the morning to enjoy a peaceful climb.

For magical photos, go in the late afternoon or at sunset to see the city lights come alive.

How much does it cost to visit The Round Tower?

💰 Admission Fees (approximate):

Adults: 40 DKK

Children (5–15 years): 10 DKK

Under 5: Free

Exhibition access is included in the entry ticket, making it a great value for a full cultural experience.

What can you see or do at The Round Tower?

Visiting the Round Tower is much more than climbing to the top. Here’s what you can enjoy:

Spiral Ramp Walk: The smooth, white-brick ramp winds its way gently upwards—perfect for walkers, strollers, and even cyclists (historically, horses and carts used it).

Observation Deck: Marvel at sweeping city views—spot the spires of Christiansborg Palace, the Oresund Bridge, and colorful Copenhagen rooftops.

Historic Observatory: Peer into the night sky from Europe’s oldest functioning astronomical observatory.

Library Hall Exhibitions: Attend rotating art and cultural exhibits, lectures, or concerts in this former scholarly space.

The Bell Loft: See old church bells and timber structures that give a glimpse of 17th-century craftsmanship.

What is the history behind The Round Tower?

The Round Tower was commissioned by King Christian IV and completed in 1642 as part of the Trinitatis Complex, which combined a church, a library, and an observatory. Its unique spiral corridor was designed to allow horses and carts to carry heavy astronomical equipment to the top.

For centuries, astronomers observed the stars here, making it one of Europe’s pioneering scientific sites. Later, its library hall became a cultural center, and today the tower continues to honor its legacy through art, science, and public events.

Where is The Round Tower located and how do you get there?

📍 Address: Købmagergade 52A, 1150 Copenhagen, Denmark

🚇 By Metro: Take the M1 or M2 line to Nørreport Station; the tower is a 5-minute walk.
🚌 By Bus: Several city buses stop at Nørreport or Gammel Torv.
🚶 On Foot/Bike: Located in the pedestrian-friendly Latin Quarter, it’s easy to reach on foot or by bicycle from anywhere in central Copenhagen.

Insider Tips for Visiting The Round Tower

🎫 Buy tickets online during peak tourist season to avoid queues.

🌅 Time your visit for sunset for the most spectacular cityscapes.

🎨 Don’t skip the Library Hall, even if you’re mainly here for the views—its exhibitions often feature top Danish and international artists.

Nearby Attractions to The Round Tower

While in the area, explore these other highlights within walking distance:

Rosenborg Castle – Home to Denmark’s Crown Jewels and lush King’s Garden.

Nyhavn Harbor – Iconic colorful houses and lively waterfront dining.

Christiansborg Palace – A majestic seat of the Danish Parliament.

Strøget Shopping Street – One of Europe’s longest pedestrian shopping avenues.

National Gallery of Denmark (SMK) – A treasure trove of Danish and international art.

Turn Your Visit into an Interactive Adventure

The Round Tower is more than a landmark—it’s a journey through Copenhagen’s history, science, and art. Climb its spiral ramp, gaze at the stars, and soak in views that connect centuries of Danish culture.

👉 Make your visit unforgettable with a Questo quest. Solve clues, uncover hidden stories, and experience Copenhagen in a fun, interactive way that transforms sightseeing into a real-life adventure.