On Japan's Tashirojima Island, cats are king.

Where beer lovers can literally immerse themselves in beer.

Venice's "Island of the Mad."

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

An odd little fishing town that is inundated by tourists looking to be locked up in a cage and surrounded by great white sharks, because why not?

A serpentine highway twists and turns over the treacherous Norwegian Sea.

An underwater city for the dead.

These azure waters were thought to lead to the Mayan Underworld.

The abandoned Japanese amusement park once loomed as a dystopian Disneyland.

Hidden beneath the streets of London is a secret subway that only carried mail.

An Australian lake whose pink hue defies scientific explanation.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

Dilapidated ruins that once treated a notorious young serial killer, currently hosting vandals, squatters, and ghost hunters.

Stunning wetlands ablaze with pink lotus flowers.

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

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

An old department store turned Nazi prison turned artist commune.

A Hawaiian stairway to heaven—that you can't climb.

One of the world's largest ice festivals dazzles visitors for over a month with radiant sculptures and carvings.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

A massive underwater sinkhole made famous by Jacques Cousteau.

Terrifying derelict military hospital once housed a recuperating Hitler.

Have fun at the world's first Buddhist waterslide park.

The world's most famous cheese caves.