Discover the hidden history of Berlin’s Teufelsberg at the Declassified Exhibition, running until October 3, 2025. This captivating showcase delves into the intriguing past of one of Berlin’s most enigmatic sites, from its Cold War espionage activities to its architectural legacy.

Unveiling the Secrets of Teufelsberg

The Teufelsberg, an artificial hill built from post-WWII rubble, has a storied past. Originally intended as a military training ground, it later became a Cold War listening station for Western intelligence agencies. The exhibition invites visitors to explore this fascinating history through immersive displays and engaging storytelling.

A Multimedia Journey Through Espionage

The Declassified Exhibition offers a unique, interactive experience that brings the Cold War era to life:

• Large-Scale Photographs: Historical images illustrate key moments in Teufelsberg’s history.
• Audio Stations and Testimonials: Listen to firsthand accounts from former intelligence analysts and journalists.
• Film Projections and Installations: Dive into the shadowy corridors of the listening station through stunning visuals.

The preserved architecture of the original listening station enhances the authenticity of this unforgettable journey into Berlin’s past.

Spying During the Cold War

Learn how the Teufelsberg served as a key surveillance hub during the Cold War, employing over 2,000 soldiers to intercept communications from the Eastern Bloc. The exhibition also sheds light on espionage scandals, including the leak of classified documents to the Stasi and KGB.

Practical Information

The Declassified Exhibition is located at Teufelsberg in Berlin’s Grunewald. Accessible via public transportation:

• S-Bahn Line S7 to Grunewald, then Bus 186 to Teufelssee.
• A scenic walk through the Grunewald forest leads to the site.

Combine History with Nature

Pair your visit to the Declassified Exhibition with a trip to the nearby Grunewald Tower. This historic lookout offers panoramic views of Berlin and its lush surroundings.

Conclusion

The Declassified Exhibition is more than a history lesson—it’s an immersive experience that uncovers the secrets of Berlin’s past. Whether you’re a history enthusiast or simply curious, this exhibition is a must-see.

At a Glance

Address, Opening Hours …

What: Declassified – The Secret of the Devil’s Mountain
Where: Teufelsberg, Teufelsseechaussee 10, 14193 Berlin
When: until October 3, 2025
Opening hours:
Monday – Friday: 11 a.m. – 6 p.m
Saturday, Sunday, public holidays: 11 a.m. – 6 p.m
Last entry:
an hour before sunsetDeclassified” exhibition – 11:00 a.m. – 6:00 p.m
Ticket: free up to €6Admission: €10, reduced €8

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