To the not faint of heart, I recommend visiting one of Berlin’s most striking modern ruins: the former listening station towers atop Teufelsberg. The berg itself is a man-made mountain assembled from the wreckage of World War Two. The listening stations, which resemble giant golf balls, were built by western forces to intercept radio communications from the east during the Cold War. The complex has since fallen into a state of extreme disrepair, helped along by the prolific efforts of squatters, vandals and zombies of the post-apocalypse. It’s a powerful sight to behold, and the sunset view of Berlin is among the city’s best. In the interest of full disclosure, one must trespass through barb-wired fence holes just to get in–not to mention ankle breaking holes in the floor, rusty shrapnel, piles of broken glass and doorways to nowhere. I advise bringing a flashlight, a bottle of wine and perhaps a first aid kit. Enjoy!