Cold War Radar Teufelsberg Cold War Listening Station geodesic dome structures
Berlin, Germany 1963 - Decommissioned 1992

Teufelsberg Field Station

Built by the US National Security Agency atop a man-made hill of WWII rubble in West Berlin, this listening station monitored radio signals across Eastern Bloc borders.

Brutalist Architecture Buzludzha Bulgarian Monument peak concrete dome exterior
Balkan Mountains, Bulgaria 1981 - Abandoned 1989

Buzludzha Monument Peak

A saucer-shaped concrete ritual hall sitting at 1,441 meters elevation. Its glass mosaics and structural steel ceiling are rapidly succumbing to extreme mountain weather.

Mid-Century Resort Haludovo Palace Hotel overgrown concrete pillars and atrium
Krk Island, Croatia 1972 - Abandoned 1991

Haludovo Palace Hotel

Designed by Boris Magaš as a lavish modernist casino resort. Following regional conflicts in the early 1990s, the complex was stripped of its fixtures and left to disintegrate.

Subterranean Facility Decaying subterranean airbase tunnel and blast door portal at Zeljava
Zeljava, Croatia / Bosnia 1968 - Destroyed 1992

Zeljava Underground Airbase

Code-named 'Objekat 505', this massive underground military airport beneath Plješevica Mountain contained 3.5 kilometers of reinforced tunnels built to withstand nuclear strikes.

Industrial Plant Rusted blast furnace and steel piping of abandoned ironworks
Duisburg, Germany 1901 - Closed 1985

Meiderich Ironworks Complex

A massive heavy industrial blast furnace plant transformed into a protected architectural monument preserving early 20th century metallurgical engineering heritage.

Historical Sanatorium Overgrown facade of a historic European sanatorium building in Beelitz
Beelitz, Germany 1898 - Abandoned 1994

Beelitz-Heilstätten Sanatorium

A 60-building hospital complex originally built for tuberculosis treatment, later utilized as a military field hospital. Famous for its tilework and lush foliage taking over interiors.