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.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

The "lovely red Vega" of the legendary record-settling pilot.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

This dramatic rail curve was once the target of a failed Nazi attack.

The highway's southernmost spot is a beloved local attraction.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.