Devil's Throat Cave A spectacular Bulgarian cave resembling a devil's head with a waterfall rushing down its throat. DZI Sofia Center This building has two facades of clashing architectural designs. Gotse Delchev Temple The temple that withstood the Nazis. Hagia Sophia Church This fifth-century church is one of the oldest Christian sites in the Balkans. Historic Melnik This tiny Bulgarian town offers a stunning location in the mountains and a storied history. Kaliakra Transmitter Massive, unfinished broadcasting station stands as a monument to the fall of communism. « Previous 2 3 4 5 Next »