The "last unrestored grand mansion of Savannah" is now a cramped, mouldering maze of antiques.

An early-19th-century hotel with a past that is steeped in the Civil War.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.

An eerie smiling woman looms above the granite tombstones.

This twisty sign depicts the chain's first logo.

Paths are maintained, but trees have taken over plots.

This too-low North Carolina railroad trestle is still a notorious big rig executioner.

A sculptor's dream castle turned fantastical ruin.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

A wedding chapel, vintage clothing shop, and bar all under one roof.

Carrying on the legacy of a short-lived experimental school tucked away in the mountains of North Carolina.

A museum dedicated to the legacy of Bob Moog and his pioneering synthesizers.

This giant iron playfully pays tribute to an early 20th-century architectural trend.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

A spectacular tribute to statesman and philanthropist Andrew Mellon.

An echo chamber with a waterfall wrapped around its base at the Embassy of Canada in Washington, D.C.

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

Washington's iconic carousel has a nice piece of Civil Rights history.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

The rusting remains are visible sticking out of the waters of the Delaware Bay.

World War II bunker still standing on the New Jersey beach.