The mummified relic of St. Antoninus.

An incredible menagerie of more than 3 million taxidermied animals at the oldest science museum in Europe.

This museum is rotten with a century of wax medical deformities.

Secret refuge and museum of the Duke of Florence.

The largest and most famous wax anatomical collection anywhere in the world.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

The middle finger of modernity.

Ten shipwreck-shaped chalets lie along the sand dunes on Namibia’s Skeleton Coast.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

Travel deep inside of Europe's second largest glacier in the world's largest man-made ice cave.

The highest tides in the world come in and out here twice a day, allowing you to essentially walk along the ocean floor.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

An underwater restaurant, surrounded by a coral reef.

This overgrown Illinois water park offers a whole new type of adventure.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

Secluded amid upstate New York’s Adirondack Mountains lies this subterranean emblem of a nation on the brink of nuclear war. And it's for sale.