This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

This crumbling folly looks like an enchanted left over from Middle Earth.

An ancient city exhumed from the depths of the ocean.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.

Neither Spanish settlers nor anyone since has been able to tell who built these strange California rock walls.

The largest earthwork effigy in the world.

A coastal rock outcrop with mysterious inscriptions variously attributed to Native Americans, Portuguese, Phoenicians, Norse, and more.

Native Americans built this circle of stones, which was used to predict astronomical events.

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

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

One of the oldest amusement rides in existence was a huge disappointment to its creator.

This $62 million dollar temple was erected to house one little dental fragment of religious history.

What was once a unique system of urban elevators is turning into a mechanical ruin.

Italian cave with exceptional acoustics and an unsavory history.

While this monument tile is shrouded in mystery it also marks the end of the longest ever human chain.

Canada's largest graveyard boasts a lot of noteworthy artifacts as well as its own computerized mapping service.

This memorial marks the devastating day that Texas City was destroyed in a daisy chain of exploding ships.

This mouldering abandoned mental hospital was once a center for progressive healing.

The mystery of this small, brick pond eluded its possibly only investigator until his death.

These giant metal horses graze on a hilltop near the Montana highway.

This small town Texas cemetery is said to be the burial site of a UFO pilot who crashed in the 1800s.

Steep canyon walls hide a forested oasis in the West Texas desert.