One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

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

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

Perhaps the most scandalous statue of America's first president.

The oldest continuously operating fish market in the United States.

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

A tiny piece of the Moon is embedded in this stained glass masterpiece.

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

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

Pablo Neruda's custom-built lover's nest was made to remind him of the sea and named after his mistress' hair.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

One of the best places to see feral Colonial Spanish Mustangs in the United States.

This bridge is haunted by the ghost of a distraught mother.

The world's longest known cave system.

One person's lost luggage is another person's treasure.

A historic coal mine that doubles as a museum and tourist attraction.

Mai Tais and Navy Grog served up in one of the original tiki bars.

Moonbows over Kentucky.

One street divides a single town that stands in two U.S. states.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

The record holder for the world’s largest peach.