Remnants of a storybook amusement park hidden behind a strip mall.

A swimming hole in the historic industrial quarry that supplied the marble for the Baltimore Washington Monument.

The world’s largest LED display, built over an F1 race circuit.

This enormous sports car themed amusement park is home to the world’s fastest roller coaster.

Whitewashed mosque contains the world's largest carpet.

This overgrown Illinois water park offers a whole new type of adventure.

Few other hotels can rival the grandeur of the Castle in the Rockies.

This natural wonder is disappearing at an alarming rate.

After sunset the heart of Zanzibar's historic Stone Town neighborhood transforms into a culinary playground.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A speakeasy takes on Chicago's drinking culture.

The wreckage of a deadly bomber plane crash can still be found near an Arizona peak.

The cinder cone volcano with a less than complimentary name.

A geological mystery on Camelback Mountain.

A time capsule of Floridian history fights to survive on the banks of Chokoloskee Bay.

Electrical pylon in the shape of Disney's beloved mouse.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Concrete strongholds stand guard over the Golden Gate.

The so-called "Bridge of Thighs" in Palm Springs allows nudists to discreetly cross the road.

Less a museum than a bizarre fantasy world created by artists and engineers.

Bouncing, delightful, mechanical art at the MIT Museum.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

An architect's childhood fantasy treehouse made real.