From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

Commonly referred to as the most photographed Victorian home in the United States.

This whimsical stacked cabin looks like something out of a children's book.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

A subterranean playground in an abandoned slate mine.

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

Acres of natural wonders left behind by a socialite-turned-gardener.

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

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

The most powerful waterfall in all of Europe.

Surreal riveted sea forts once protected the Kent shores from German attack.

Shop of curiosities with a dinosaur museum tucked in its basement.

Lavish royal estate punctuated with heated greenhouses.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

A storybook European village in Berkeley.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

No matter what it might seem like on film, most scenes filmed on a plane are filmed at this LA studio.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

This historic hotel invented the chocolate brownie.