This strange hill on Old Fort Road where gravity works in reverse has been fascinating locals for years.

Beyond being incredibly fun, not much can be said about the Hole with certitude.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

California's oldest wind harp represents a historic piece of America's Danish history.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

This hands-on math museum believes in turning concepts into constructs.

The final resting place of a space program monolith.

A huge musical instrument played by the ocean.

Its buzzing collection honors vibrator history.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

Furniture tries to escape an abandoned building in San Francisco.

Three prestigious academic collections come together to create a world-class natural history museum.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A mechanized clock where a man fights off a dragon, crab, and rooster.

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

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

Architectural monsters are devouring this palace's every door and window.

This bare tree might not have leaves but it is constantly clothed in festive decorations left by mysterious local benefactors.

The hometown of Popeye's creator is littered with a growing collection of granite cartoon characters.

Founded by the famed children's book artist, this museum spreads an appreciation of the arts through picture books.

Taiwan's only erotically-themed restaurant brings the comedy back to sex and dinner.