From Stonehenge to the Bermuda Triangle, unexplained mysteries have continued to fascinate — and have lead to an assortment of theories. This limited-edition set of seven solid 14K gold coins commemorates seven of the most mysterious places on earth: Stonehenge, Ayers Rock, Nazca, Easter Island, Transylvania, Bermuda Triangle and the lost continent of Atlantis. Each 2006 coin minted in Fiji has a face value of $5.