Beelitz Heilstatten Military Hospital

Now more famous as a set for The Pianist and Valkyrie, the mostly abandoned 60-building Beelitz Heilstatten Military Hospital, located in the woods outside Berlin, was a bustling hospital during World War II. The site was built as a sanatorium in the late 1800s and early 1900s, but was converted into a military hospital “treating Hitler during World War I” and included theaters, psych wards, and a rifle range. Operations here ceased in 2000, and while some of the buildings have been meticulously restored, the vast majority of the complex has been turned over to adventure-seeking urban explorers.