One of corporate America's best-kept secrets is also one of the most publicly displayed.

This Art-Deco movie palace is the oldest independent cinema in Atlanta.

This ever-changing arrangement of naked dolls even caught the attention of "The Walking Dead" crew.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Besides being home to cave paintings and pre-Columbian Cuban archaeological remains, you get to take a boat through this stalactite and stalagmite covered cave.

Neo-cave art on the macro scale.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

Everyone from Alan Ginsberg to The Rolling Stones has stopped by this classic dive bar.

The world's second largest single-dish radio telescope, once used to contact E.T.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

Home of Howard Hughes' Spruce Goose.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

Visit the site of a subway powered by nothing more than air--and lots of it.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

The walls and streets of the ancient city are peppered with penises.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

"We Seceded Where Others Failed."

The birthplace of American international flight service has been turned into a celebrity's microbrewery.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

A subterranean display of public art and architecture.