Stonehenge is a prehistoric monument in Wiltshire, England, about 2 miles west of Amesbury and 8 miles north of Salisbury. One of the most famous sites in the world, Stonehenge is the remains of a ring of standing stones set within earthworks.
Newgrange - The sun entering the passageway at Winter Solstice. Newgrange is a prehistoric monument in County Meath, Ireland, about one kilometre north of the River Boyne. It was built about 3200 BCE, during the Neolithic period.
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Riviera Maya, Mexico - With their stalactites and stalagmites, and pools of water shining an unearthly blue, Riviera Maya cenotes look like wondrous underground cathedrals. You can swim and snorkel inside many!