When we visit observation towers around Berlin, we can usually count on one thing: impressive views, beautiful nature, and spectacular platforms. Whether from the futuristic Wolkenhain near Berlin’s city center or the observation tower on the Wehlaberg, the views often stretch for miles. What these places lack, however, is a genuine “lost place” right next door that creates a gloomy and historic atmosphere. That’s exactly what we’re introducing to you today: The Beelitz-Heilstätten Tree Top Walk runs directly over the overgrown ruins of the former Beelitz-Heilstätten, a massive historic sanatorium complex that today looks like a mix of an enchanted movie set and a post-apocalyptic natural site.
The Beelitz-Heilstätten complex was built at the end of the 19th century as a sanatorium for tuberculosis patients from Berlin. Later, it was used, among other things, as a military hospital, including by the Soviet Army. After standing vacant for a long time, many buildings fell into disrepair and were slowly reclaimed by nature. It is precisely these overgrown facades, broken windows, and buildings surrounded by trees that make the place so famous today.
The actual treetop walkway opened in 2015 and stretches for about 700 meters through the treetops and over parts of the historic ruins. Visitors walk directly over former buildings and courtyards in some sections, while the old brick structures slowly disappear into the forest below them. It is precisely this perspective that makes the place so special, because nature and architecture almost merge here.
The highlight is the approximately 40-meter-high observation tower at the end of the trail. From the top, the view stretches far across the forests of Brandenburg and, on a very clear day, even as far as the Berlin skyline with the TV tower. With its spiral-shaped construction, the tower itself looks almost futuristic and reminds many visitors more of a modern art installation than a classic observation tower.
In terms of atmosphere, the site is one of the most unusual in Brandenburg. Old facades, crumbling balconies, and overgrown roofs suddenly appear among the treetops. Especially in fog, at sunset, or in the fall, the complex looks almost cinematic and is therefore often compared to dystopian series, abandoned places, or fantasy backdrops. No wonder, then, that the Beelitz Sanatorium has been used as a filming location time and again.
The so-called “Alpenhaus” complex is also particularly well-known and is considered one of the most mystical parts of the sanatorium. For years, the site was a famous abandoned place, attracting photographers, urban explorers, and film productions from all over Europe. Today, the treetop walk offers a safe way to experience this atmosphere legally.
