The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The largest collection of hair jewelry in Europe reminds you how creepy 19th-century love was.

A museum celebrating the Victorian obsession with hair art.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

This Italian church is as beautiful as it is common, except for the real skulls decorating the many mannequins inside.

One of the world's largest collections of pathological specimens.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

Venice's "Island of the Mad."

An abandoned Indian-inspired mansion.

English antique dealers with a taste for the unusual.

Repository for more than 22 million pickled specimens.

Eighty million natural history specimens call this gargantuan museum home.

The world's oldest surviving anatomical theater, where "the dead are pleased to help the living."

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

A unique seaside cave where Aleister Crowley faked his own death.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

A museum wholly devoted to juvenescence.

David Sedaris called it "The greatest shop in the world."

The astonishing collection of an infamous criminologist.

The mummified relic of St. Catherine sits forever on a golden throne.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.