An exquisite tunnel of cascading flowers.

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

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

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

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

Repository for more than 22 million pickled specimens.

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

A 200-year-old prison that now houses a peculiar crime museum.

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

Eighty million natural history specimens call this gargantuan museum home.

This hidden rooftop garden in downtown London offers a quiet respite from a bustling city.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

Museum about life, death, and cannibalism in the Stone Age.

Scattered throughout London are ancient remnants of the city's former bounding wall.

400-year-old garden, restored to beauty.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

Below a historic English market town lies a secret underground city complete with kitchens, laundries, storerooms, and an underground lake.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.