Not all mysterious sites have ancient origins. One of the strangest structures on our list has only been around for just over three decades. Located in northeast Georgia's rural Elbert County, the six Georgia Guidestones (five upright and one Stonehenge-esque capstone on top) were erected by contractors under the direction and funding of a person or people who have remained anonymous to this day.
Ten items are listed in eight different languages on the face of the stones (in English, Spanish, Swahili, Hindi, Hebrew, Arabic, Chinese and Russian). This cryptic (though not necessarily religious) list has been referred to as a some sort of version the Ten Commandments for a post-apocalyptic time. On a small tablet near the main structure, there are statistics about the size and astronomical alignment of the stones and also the inscription, “Let these be guidestones to an Age of Reason.” Since the people behind this project remain anonymous, the stones have inspired various conspiracy theories (some of them quite wild and colorful). Some people have pointed out that the “commandments” are in line with the teachings of various secret societies around the world.