Ancient human, animal, and geometric figures drawn in the earth.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

Yale University's home for rare works, including the mysterious Voynich Manuscript.

A seasonal movie monster museum featuring wax creations by a relative of one of the original Universal Studios monsters.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

These etchings reveal the history of a long-gone quarantine site.

These broken shards of ancient ruin may hide an ancient pyramid.

A terrific purveyor of natural history objects and curios.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

Headquarters of the legendary clairvoyant's readings, spiritual hospital, and massage school.

Recovered suit of a cannibalistic West African gang.

A fantastic castle rumored to be the birthplace of King Arthur.

On La Gomera, "Silbadors" communicate in a 4,000-word language of whistles.

A massive underwater sinkhole made famous by Jacques Cousteau.

One of the most remote and isolated villages on the Arabian Peninsula.

Massive stele returned to Ethiopia after 70 years in Rome.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

Abandoned city hidden from the world by tropical forest and isolation on the coast of Kenya.

The hottest place on the planet.

The world's largest bioluminescent area was undiscovered by science until 2005.

Protecting the future of some of the rarest and most misunderstood mammals of North America.

A giant 400-acre preserve in North Florida for displaced wolves.