The final resting place of New Orleans' most famous voodoo priestess.

This statue standing near Sweden's southernmost point was based on the grandmother of a modern movie star.

This hidden gem in Arizona is truly worth the rugged journey.

An eerie reminder to the horrors of World War II.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

An ancient city exhumed from the depths of the ocean.

An abandoned castle owned and ignored by Masons carries a cursed history.

European castle ruins in an American state park are actually the product of death and grief.

A hidden three-foot-wide house separates these two regal churches.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

A whimsical tower with a spiral staircase, inspired by the Space Age and the Möbius strip.

Double spiral staircases are not unheard of, but they are very rare.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

Conspiracy theories and occult legends surround this mysterious natural rock formation.

A massive work of modern art that appears to be a crop circle in the middle of the desert.

This enormous spiral sculpture looks strangely out of place on the edge of a housing development.

A corkscrew-shaped barn in Ireland.

This fantastical house shaped like a seashell brings aquatic design to architecture.

The ancient tomb acts as a calendar that keeps perfect time.

A spiral staircase twists to the top of this unusual Czech lookout tower.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

This Danish castle is supposedly haunted by a woman too independent to not be a witch.

This declassified Cold War bunker hosts a large collection of Swedish aircraft.