← Back

The Round Tower is the oldest observatory in Europe

Købmagergade 52A, 1150 København K, Danimarca ★★★★☆ 1,196 views
Sofie Dequenne
København
🏆 AI Trip Planner 2026

Get the free app

Discover the best of København with Secret World — the AI trip planner with 1M+ destinations. Get personalized itineraries, hidden gems and local tips. Free on iOS & Android.

🧠 AI Itineraries 🎒 Trip Toolkit 🎮 KnowWhere Game 🎧 Audio Guides 📹 Videos
Download on the App Store Get it on Google Play
Scan to download Scan to download
The Round Tower is the oldest observatory in Europe - København | Secret World Trip Planner

Standing majestically in the heart of Copenhagen, the Round Tower is a testament to the city's rich scientific and cultural heritage. Completed in 1642, it is Europe's oldest functioning observatory, originally serving as an astronomical research facility for the University of Copenhagen until 1861. The founding of the tower was commissioned by King Christian IV, who envisioned a space for education and the advancement of knowledge. A key historical event associated with the tower is the establishment of the Royal Danish Astronomical Observatory, which played a pivotal role in early astronomical studies in Northern Europe.

The Round Tower is the oldest observatory in Europe - København | Secret World Trip Planner

The Round Tower is an architectural marvel, designed in the Renaissance style by the architect Hans van Steenwinckel the Younger. Its unique spiral ramp, which stretches an impressive 268.5 meters in length, leads visitors on a gradual ascent to a viewing platform nearly 40 meters above the street. The elegant brick structure, crowned with a distinctive copper-clad dome, reflects the grandeur of its era. Inside, you can find intricate murals and a beautiful baroque altar, which enhance the artistic significance of the building.

Culturally, the Round Tower is a focal point for various local traditions. It hosts numerous events and exhibitions throughout the year, contributing to the vibrant cultural tapestry of Copenhagen. Each summer, the tower celebrates its history with the Copenhagen Jazz Festival, offering live music performances that echo throughout its walls, blending modern culture with historical significance.

The Round Tower is the oldest observatory in Europe - København | Secret World Trip Planner

When it comes to gastronomy, visiting the Round Tower is also an opportunity to explore local Danish cuisine. Just a short stroll away, you can indulge in traditional dishes like smørrebrød, an open-faced sandwich often topped with fresh herring, and frikadeller, delicious Danish meatballs. Don't miss out on trying Danish pastries from nearby bakeries, known for their flaky layers and delightful fillings.

While many tourists flock to the observation deck for panoramic views of the city, several lesser-known curiosities make the Round Tower even more intriguing. For instance, the tower's spiral ramp was designed to accommodate horse-drawn carriages, allowing scholars to transport their equipment effortlessly. Additionally, the Round Tower is home to the Trinitatis Church, located at its base, which is notable for its stunning baroque architecture.

The best time to visit the Round Tower is during the spring and summer months when the weather is mild and conducive for climbing to the top. To fully appreciate the experience, consider visiting early in the morning to avoid crowds and enjoy a peaceful moment on the viewing platform. Be sure to look for the cannonball embedded in the wall, a remnant from the Copenhagen Fire of 1728, which serves as a reminder of the city's tumultuous past.

In summary, the Round Tower is more than just an observatory; it is a monument to Copenhagen's dedication to knowledge, art, and culture. As you explore its spiraling ramp and soak in the breathtaking views, allow yourself to be transported back in time to an era where astronomy and architecture flourished hand in hand. Don't forget to use the Secret World app to plan your personalized AI itinerary for a memorable visit to Copenhagen.

🗺 AI Trip Planner

Plan your visit to København

Suggested itinerary near The Round Tower is the oldest observatory in Europe

MAJ+
500.000+ travelers worldwide
  1. 🌅
    Morning
    The Round Tower is the oldest observatory in Europe
    📍 København
  2. ☀️
    Afternoon
    Stroget, one of the longest pedestrian zones in the world
    📍 0.3 km da København
  3. 🌆
    Evening
    Strøget | The Main Pedestrian Shopping Street in the city
    📍 0.3 km da København

Buy Unique Travel Experiences

Powered by Viator

See more on Viator.com

Explore nearby · København