41. Buzludzha Monument, Kazanlak, Bulgaria
The Buzludzha Monument was built toward the end of the Cold War by the Bulgarian communist regime, who hoped it would serve as a prominent and official headquarters for the Bulgarian Communist Party. The UFO-esque building was the site of many state functions, with Lenin and Marx posters and a red-star ceiling setting the ambiance. The monument was abandoned and closed to the public in 1989, (sadly) preventing sneaky explorers from venturing in to gaze at the otherworldly dome.
42. Bodie, California
Once home to 10,000 people, Bodie boomed in the 1870s and 1880s, when gold was found in the hills surrounding Mono Lake. It’s now a State Historic Park, with some parts of the town preserved in a state of “arrested decay”—think tables with place settings, and shops stocked with supplies.