The ruins of an open-air theater built on this Georgia island in the 1970s.

Georgia's first brewery is also one of its oldest surviving buildings.

A modest walled graveyard where nobody is actually buried.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

If all members were present at the table, a sixth of the world's wealth would be under the same roof.

A graveyard of bathyspheres and diving bells paints a weirdly accurate account of ocean exploration's rickety history.

The largest earthwork effigy in the world.

An obsolete, vanishing traffic device warns Cincinnati drivers away from middle-of-the-road obstructions.

Enormous lake at the bottom of a unique cave system.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

Salt is slowly eating away this abandoned saltworks town in the desert.

This replica of the Greek structure is in the heart of Nashville.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

The first KFC is on the National Register of Historic Places.

Moonbows over Kentucky.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

Visit this playground of waterfalls, caves and sinkholes.

More than five miles of underground passageways.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

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

Once a gas station, this flightless airplane beside the Old Dixie Highway now houses a barbershop.