The Florence Nightingale Museum is home to the famous nurse's most treasured possession: her beloved pet owl.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Home to three historic ships from the age of Vikings.

A thin pane of glass keeps visitors from sliding off this futuristic skywalk.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

An artist's mausoleum with a haunting echo.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

Lavish royal estate punctuated with heated greenhouses.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Cozy basement bar sports an inventory of over 2,000 beers.

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

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

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

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

The headless bodies of more than 1,300 guillotined victims of the Reign of Terror are buried here in mass graves.

Inside a former cabaret, seven floors of erotic art.

France's most famous cemetery, with some of its most curious tombs.

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

A haunting collection of the vanished and disappearing natural world.

Weird wax anatomical models reside here, as do other anatomical specimens.

Dedicated to the art of hunting, with juxtapositions of contemporary art.