A kaleidoscopic warehouse-maze of handmade neon signs.

The world's largest collection of witchcraft regalia.

Hidden beneath the streets of London is a secret subway that only carried mail.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

These fantastically named natural pools look like something out of a Scottish myth.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

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

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

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

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

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

The most visited, and possibly most controversial, museum in Germany.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

The abandoned remains of this Victorian brewery hide crumbling bowling alleys and rusting industrial gear.

An old department store turned Nazi prison turned artist commune.

Only 380 kV Powerline in Europe not directly interconnected to the European 380 kV Grid.

An electrical pylon under whose legs a normal gauge train can run.

A section of destroyed vertical lift bridge stands alone in the Peene river.

One of the world's heaviest musical instruments towers within a popular urban park.

These tenacious 14th-century towers defied demolition and are now a fairytale vacation rental.

Albert Einstein's head sticks out of a snail shell stacked on a rocket in this truly bizarre monument to the scientist.

Home to the world’s oldest seismograph and a four-ton steel ball that makes its own earthquakes.

The man who gave his name to magnetic measurement is buried in the city where he did his best work.