This tiny patch of arid sand sits in one of the greenest states in the United States.

The world's largest rotating world.

The only remaining historic maritime signal station in the United States.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

The lecture hall where Alexander Graham Bell first demonstrated the long-distance phone call.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

One of the largest wooden ships ever built is honored by a steel sculpture evoking her once-superlative scale.

An unusually designed bridge from the 1920s was built to withstand the tides and winds of Maine.

This museum on a college campus pays tribute to the Arctic and to two explorer alumni.

This vast kitty-themed collection illustrates the history of human-cat interaction.

One of the few surviving "Wigwam"-themed motels.

A local scoured more than 1,000 acres for stone to create his masterpiece.

The world's longest known cave system.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

The remains of this visionary community can still be found much as it was a century ago.

Sitting atop San Francisco's tallest hill, a cross honors the victims of the Armenian genocide.

At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

It’s all about the Benjamins at this Atlanta museum with interactive exhibits.

The first integrated firehouse in Atlanta houses a museum on the history of desegregation in the city's fire department.

A psychedelic tribute to one of Georgia's most unique artistic visionaries, out of place and time in the heart of Atlanta.

An eerily abandoned stone tower is all that remains of a demolished dam on Cape Fear River.

This woodland architectural installation acts as a camera obscura for the heavens.

The scene of the largest surrender of Confederate troops at the end of the American Civil War.