The Mayan Ruins of the Yucatan Peninsula are truly a treasure to behold. These lost cities hail back to as many as 2,000 years ago, when the Mayas were practicing such mathematical genius as astronomy and physics, long before the white man had figured out the secrets. Nobody knows what happened to the Mayas, but their legends - and their cities - live on to this day. Every visitor to Cozumel should visit Chichen Itza, Tulum, or Coba Mayan ruins at least once on their vacation. This is something truly unique to this region, and the stories that these ruins tell will move you.