This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.

Europe's second largest ossuary wasn't discovered until 2001.

Mummified monks and the accidentally interred, in a 17th-century crypt.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

A museum and gardens with unusual plants and a history of progressive programming for the blind.

A historic arboretum and non-conformist, non-denominational park cemetery.

Inside a former cabaret, seven floors of erotic art.

Every inch of this chapel is covered in craftsmanship from across the world.

The celebrated eyesore created by starry-eyed sweethearts.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Macabre astrological automaton clock dating to the late 1400s.

The first museum in the world devoted to sexual gadgetry.

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

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

A quiet memorial to those who died saving others in the heart of the City of London.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

The sign at the garden gate reads: "These Plants Can Kill."

A perfectly running 230-year-old silver automaton and music box.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

A book bound in the skin of an infamous criminal, along with countless other specimens.