This site is believed to be connected to the oldest house in Arlington County.

This beautiful vintage movie palace has seen little change in form or function since the 1920s.

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

A modest walled graveyard where nobody is actually buried.

Where three rails and three centuries of transportation meet.

This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.

This collection features more than 240 antiquarian maps from around the world, in addition to historical views and plates focusing on North Florida.

Georgia's first brewery is also one of its oldest surviving buildings.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

The conquistador's former fortress is the oldest preserved colonial building in the Americas.

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

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

The colonial city's social history is reflected in its fanciful door knockers.

This university transit system is a 1970's vision of the future.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

An intricately designed junk art house with four extravagant junk art cars hidden in the suburbs.

Victorian "Fancy Craft" Hair Wreaths and Relics.

Constructed by the younger brother of George Washington.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

The national park was once a plantation estate.

This stone complex marks the urban center of a lost civilization.