Marta Becket's hand-painted theater in the desert.

The Mysterious Witch Bonney, a haunted statue in an old industrial city.

This impressive tunnel was dug entirely by hand over the course of 36 years.

One of the most unusual geological features, recognizable from a dozen hit movies.

Where NASA's satellites and rovers phone home.

The location of the last stand of Charles Manson's doomsday cult.

Ten 25-foot-tall, beehive-shaped kilns, abandoned in Death Valley.

Odd outsider art installations surround a Gold Rush-era ghost town.

Natural time capsule containing an alien ecosystem.

The rocks in this arid basin leave trails of movement behind them.

A seemingly endless landscape of pure salt stretches far across Bolivia.

A geological bull's-eye visible from outer space.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

Hideout of thieves, monks, and goat-footed gods.

This replica of the Greek structure is in the heart of Nashville.

Famously misunderstood wonder of the ancient world

Ancient Greek oracle of the dead.

Monasteries on rock pillars, once accessible only by frayed ropes.

An autonomous republic of Orthodox monks.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

The world's largest collection of witchcraft regalia.

Ruined castle with subterranean vaulted Goblin Ha' or "Goblin Hall."

The ancient settlement attracts tourists from all over looking to learn about the Chinese vision of the afterlife.