The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

The site of the climactic scene from the classic horror film is now a historic landmark.

A beautiful geyser under environmental threat.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The United States Capitol's former columns still stand.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

France's most famous cemetery, with some of its most curious tombs.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A battle between nature and architecture in the Cambodian jungle.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

A snapshot of the city's fascinating voodoo culture.

Remnants of a storybook amusement park hidden behind a strip mall.

An eerie, derelict amusement park in Berlin.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

The fairy tale castle of the "fairy-tale king."

A fiery crater has been burning in the Karakum Desert since 1971.

World's first "penitentiary," meant to be humane, drove men insane.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.