High atop a mountain in the very center of Bulgaria sits what was supposed to be the nation’s pride and glory: the House of the Bulgarian Communist Party. Bigger in size than the Pantheon in Rome, the Buzludzha monument—a futuristic oval structure with a tower, 230 feet tall, overlooking the stunning mountain landscape—was meant to be a communist mecca. Adorning the top of the tower was a huge red star made of ruby glass that, when lit up, was seen all the way from neighboring Greece and Romania.

Built in 1981, this was peak communism.