A museum dedicated to a unique ecosystem.

A forgotten sea village stands silent after hurricanes deemed it obsolete.

The final resting place of the hundreds of bodies originally buried where Badin Lake sits now.

Conjoined twins Daisy and Violet Hilton were stars of the vaudeville circuit.

The North Carolina grounds are leased in perpetuity to the British Commonwealth for as long as the WWII sailors are buried there.

This North Carolina grave is the final resting place of the world's most famous conjoined twins.

The humble gravesite of the man who failed to cash in on his Pepsi-cola goldmine.

The upstairs museum delves into the Lawson family murder, whose eight victims were embalmed at this store in 1929.

One of the three perfect vellum copies of this historic book known to exist is on display in a specially-designed case.

The only Leonardo Da Vinci painting in the Western Hemisphere.

This small hilltop church weaves the urban history of Washington, D.C. with the national history of the United States.

The legacy of a wealthy executive and his wife, this little-known art museum features works by Picasso, Monet, Renoir, Cezanne, and more.

Sip creative cocktails in the former vault of the Riggs Bank.

Press 1 for knock-knock jokes.

This groundbreaking 16th-century map is known as "America's birth certificate."

A tribute to the pop culture icon overlooks this Washington D.C. intersection.

The fountains of the U.S. Navy Memorial are annually salted with water from the Seven Seas as part of a nautical ritual.

Daily lunch spot for many of Washington, D.C.'s cab drivers.

Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.

Before Nixon, "watergate" meant canals.

Senators used to relax in the nearly forgotten marble tubs now hidden in the U.S. Capitol Building's basement.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

The world's oldest soul food restaurant is also one of its best.