Consider clues to ancient riddles and modern mysteries as you visit 4 of the Earth's most intriguing places. First, travel to Atlantis, the island continent that supposedly sank into the Atlantic Ocean thousands of years ago. Then, explore The Great Pyramid, one of the ancient world's Seven Wonders, and Stonehenge, an ancient stone circle that allegedly harbors mysterious powers. Finally, enter The Bermuda Triangle, a slice of sea between Bermuda, Florida, and Puerto Rico where planes and ships have simply disappeared. Mystic Places is based on the Time Life Books series Mysteries of the Unknown.