Once frequented by heavyweights of the Russian arts scene, this café is stuck in the 1800s.

It's hard to believe the dizzying patterns covering this abandoned mine are completely natural.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

The hallucinogenic center of the ancient world.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

A fairy tale castle in modern Rome.

The final resting place of the poets Shelley and Keats.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The final resting place of many of Germany's most famous communists.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

Started as a kitchen garden, now the second largest botanical garden in the world.

An eerie, derelict amusement park in Berlin.

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

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

The final resting place to 300 Victorian-era pets hides inside the city park.

Hear the quietest sound from across the dome.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."