Former utopian colony based on the belief that the universe exists in a hollow sphere.

Elvis's own personal tropical hideaway.

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

The first full-scale tunnel built in America is short but scenic.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

Walk the whole Mississippi River!

A huge musical instrument played by the ocean.

This historic train station has been converted to a locomotive themed hotel.

Bat house that has only ever housed bat for one night; they all flew away and never came back.

This former prison is an Art Deco masterpiece with a past full of civil rights flashpoints.

Gutted airplanes slowly decay in a Florida field.

These ruins are all that remain of what a Spanish barrack that likely housed a quarry overseer, masons, and stone cutters involved in the construction of the Castillo de San Marco.

You’ll feel like you’ve gone through the looking glass at this contemporary art museum filled with glass sculptures of every size, shape, and color.

No one knows how or why this painting appeared to produce crystallized tears.

A historic landmark and museum filled with curious objects representing the history of Key West.

This historical art colony is adorned with thousands of hand-carved concrete sculptures in the Mayan Revival style.

This facility, now a museum, once housed and trained U.S. Army Air Force pilots who flew during the Allied invasion of Normandy.

This concrete sculpture features a woman opening her heart to showcase a beautiful fern.

Though it may look like it’s missing its outer shell, this skeletal cast-iron tower was built to withstand wind and waves.

A creative deviation in this post office's design was once a source of controversy.

Dedicated to the victims of one of the deadliest hurricanes to strike the United States in recorded history.

Built to replace a house destroyed by a hurricane, this home is made entirely of shipping containers.

Built in 1927, this pink stucco hotel once hosted stars of Hollywood’s silent movie era. Now it's being brought back to life.