The mummified relics of an American missionary.

The abandoned personal amusement park of the King of Pop.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

This temple, built by an eccentric religious leader before his death, sits guarded and in ruins.

This observatory comes complete with three separate telescopes and a dedicated community of amateur and expert astronomers.

Long abandoned underground complex to keep royals safe from a nuclear war that never came.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

An honorary saint of the people, Maria Adelaide became an incorrupt corpse, the clothes intact, exhaling “a strong scent of roses.”

Built to hold the worst of the worst of the Nazi war prisoners.

Home of the "true" equator.

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

Abandoned power station once home to a squatter community, now being developed into an arts center.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

Long-secret natural history museum, featuring the skull of a "Terror Bird."

George Washington's dentures and Queen Victoria's dental instruments are in the nation’s official museum of the dental profession.

A preserved 18th century steel factory.

One of the world's largest collections of rare and magnificent bird specimens.

A mysterious castle built as a monument to lost love.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

Repository for more than 22 million pickled specimens.

The Origin of On the Origin of Species.

This antique prison is a tourist attraction with a sordid past.

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

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.