The only remaining collection of flayed figures made by French "madman" Honoré Fragonard.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

This replica Viking village was created for a film that was never shot and is now open to visitors.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

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

A house of bones — but nobody is quite sure to whom they belong.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

An Austrian house of bones filled with hundreds of intricately painted skulls.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

An isolated dive site teeming with cnidarians.

On Japan's Tashirojima Island, cats are king.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

Walk 2,300 feet above the ground on the "Troll's Tongue."

This modern monument to pagan belief looks like it was transported straight from ancient times.

A dangling church built over a Colombian gorge.

Thousands of well-dressed mummies below a monastery.

An Australian lake whose pink hue defies scientific explanation.

Staves, storm-calling, and of course, necropants.

This "floating island" plateau sits 7,671 feet above the forest floor.

A seemingly endless landscape of pure salt stretches far across Bolivia.