Bad farming practices caused this unnatural natural wonder.

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

This historic railway museum may have lost its passengers but not its love for trains.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

A museum designed by and dedicated to P.T. Barnum in the town where he is buried.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

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

An enormous warehouse filled with parade floats collected from over 50 years of patriotic celebrations.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Take a steam-powered ride straight out of the past on this Appalachian rail line.

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

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

Twenty-eight years after this local landmark was washed ashore by hurricane Hugo, it was washed away by hurricane Irma.

The record holder for the world’s largest peach.

On Hilton Head Island this bronze King of the Sea rules all things briny—and lets you know if you’re late for lunch.

The uniquely-designed winter home and sculpture studio of Anna and Archer Huntington.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

Oldest unrestored plantation house in America that is open to the public.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.