Unique tower has outlasted a takeover of the company.

The world's longest known cave system.

A pharmacy built in the shape of a mortar and pestle, now resembles a fancy cocktail.

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

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

The small cave that housed Tennessee's "first citizen."

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

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

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

Jule Körner's house full of bizarre architectural details.

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

Paths are maintained, but trees have taken over plots.

Origin of the blue-skinned Fugates of eastern Kentucky.

This bare tree might not have leaves but it is constantly clothed in festive decorations left by mysterious local benefactors.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

This ceremonial mound is one of the first officially recognized Native American historical sites in North Carolina.

The former home of the hard partying literary power couple is now one of the only museums devoted to their story.

Cadillac where country's first big star was found dead.

Settled in 1696, abandoned after the Revolutionary War.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

The highest point in Virginia can only be reached by passing through ponies and flowers.

Once one of the largest producers of pig iron in the world.

A miniature city built by a single hunchbacked monk.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.