When it comes to handsignals (and colonialism) rock always beats scissors.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

A brass plaque dedicated to a convicted cannibal hangs in the National Press Club, and that's not even the craziest part of the story.

This leafy estate is worth $18 million and is so grand it has two mailing addresses.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

An abandoned Cold War missile radar site.

Two Civil War-era cemeteries stuck between runways at the world's busiest airport.

This serene bamboo walkway allows Buddhist monks from remote temples access to the nearby village.

The remnants of this unusual bridge await an uncertain fate.

This historic Ohio bridge is adorned with fanciful locks left behind by loving couples.

A former 19th-century tavern, famous for its peach brandy and honey concoction.

This calm grassy field was once a Superfund site full of thousands of nasty chemicals.

A full-scale replica of a 1774 colonial settlement in Kentucky.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

A pharmacy built in the shape of a mortar and pestle, now resembles a fancy cocktail.

An enormous goose sits atop this nest-shaped home.