This former coal mine has been turned into a sprawling modern art complex.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Quality time with reindeer in the stunning scenery of their natural Lappish habitat above the Arctic Circle.

A unrivaled and rather horrifying collection of wax dermatological models.

On Japan's Tashirojima Island, cats are king.

A bloody history is captured in this former prison turned museum.

A futuristic temple of light uses prisms and rainbows to create an atmosphere of peace.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

An abandoned water sports stadium that has become a haven for graffiti and decay.

This relatively recently abandoned brewery is a tragic reminder of the continuing effects of Hurricane Katrina.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

A museum honoring Oklahoma military service, where you can look into Hitler's mirror and see a Mickey Mouse gas mask.

A swing to dangle you off the very edge.

Dedicated to improving the plight of the rare scaly anteater.

An abandoned vacation home spent a decade taking on legends. It's now taking on water.

The final resting place to 300 Victorian-era pets hides inside the city park.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

The largest collection of two headed animals in the world.

Tucked behind the Institute of Neurological Science down a decrepit street resides the largest display of human brains in Latin America.

Home of mutant livestock.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

A 200-year-old collection of oddities and medical paraphernalia.

Medical history with an amazing, if frighting, collection of wax diseases on display.