A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

A wacky, UFO-shaped house in a suburban neighborhood.

This cavernous abandoned marble mine is popular with ice skaters in the winter.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

Obscure Freemasons still live in D.C.’s largest private residence.

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

Government testing at the asylum briefly explored using marijuana as a "truth serum" on Nazi prisoners of war.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

The oldest continuously operating fish market in the United States.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

The site of the climactic scene from the classic horror film is now a historic landmark.

The United States Capitol's former columns still stand.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.

Sojourn to the past at this residence teeming with 1950s memorabilia.

A large sculptural artwork and garden in Escondido, California.

A hand-built folk art installation covered with messages of God's love.

These lush groves of fan palms rise up like oases out of southern California's Colorado Desert.

The overgrown ruins of a once thriving World War I-era copper mine.

This little blue house pokes out over the campus of UC San Diego, seven stories high.

Lemon Grove, California is known for its giant lemon...and mummified bodies.

A couple turned their front yard into an artistic masterpiece.