A cave in Bulgaria has earned the nickname “the Eyes of God” because of its striking natural formations. Deep within Bulgaria’s karst landscape lies Prohodna C

A cave in Bulgaria has earned the nickname “the Eyes of God” because of its striking natural formations. Deep within Bulgaria’s karst landscape lies Prohodna Cave, known for its two enormous, symmetrical openings in the ceiling. Resembling a pair of eyes, they have earned the cave the nickname “The…