The sculpture is made of more than 100,000 knives collected to raise awareness about violence.

A traditional American farmhouse plopped in the middle of a Piccadilly courtyard.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

The flock of plastic poultry is an ode to the classic comedy staple.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

An archive of ceramic eggs painted to record clowns' personal makeup designs.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

An elevator into the Baltic Sea.

A delightfully quirky blend of oddities spread throughout an old 1920s bank.

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

The building that inspired Shirley Jackson's "The Haunting of Hill House."

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

South Korea's love of the silly photograph is on full display at this goofy collection of trompe l'oeil paintings.

A small and quirky museum hidden inside a fence.