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

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

FDR's Art Deco hospital tower was hopelessly inefficient.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

The land is home to swimming ponies and a legendary 18th-century treasure.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

This statue honors the author's groundbreaking family story.

This 16-foot, intricately detailed model of the Gearing-class destroyer has been called the most detailed model ship ever built.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

Built in 1945, this historic train station has a new lease on life with its baggage area serving as an event space.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

Highly spherical boulders on the shores of New Zealand.

The glacier tucked within a New Zealand rainforest.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

A glacier pocked with ice caves and surrounded by rainforests.

The Dalai Lama named this New Zealand landscape the "Spiritual Center of the Universe."

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Tubing through a cave lit with glowworms is a magical underground experience.

The name for this waterfall was derived from the Aboriginal word used to describe a rainforest vine.