This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

San Francisco’s century-old Christmas Tree.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

The final resting place of a space program monolith, soon to be unveiled again to the public.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

Home of Dutchy, an exhumed Confederate statue that was once torn down by an angry mob for looking stupid.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

The oldest Christian monastery in Iraq until ISIS blew it up twice and then drove over it with bulldozers.

A convincing little bit of ancient Egypt smack dab in Richmond, Virginia.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

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

Formerly the most gerrymandered district in the U.S., it twisted and turned along racial borders.

Remains of a historic fountain that was mysteriously lost in the demolition of a D.C. traffic circle.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

The most accurate timepiece in the world.

The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

There’s a special club house at the top for the bell ringers.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

There are eight natural springs around town, each with a slightly different taste.

A hoard of sky catalogs, astrophysical journals, even the works of Galileo and Copernicus.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”