Abstract marble carving for an 8.5-pound rock.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

Booker T. Washington's home at the Tuskegee Institute was a gem of splendor.

Formerly the most gerrymandered district in the U.S., it twisted and turned along racial borders.

Bad farming practices caused this unnatural natural wonder.

The secret city built by the Manhattan Project.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

This Tennessee manse was built so opulent that the very utilities doomed it to fail.

What better place to take a seat?

A natural history museum with an extensive collection of bird dioramas.

A historic covered bridge, only one of two remaining in North Carolina.

The first statue of Christ sleeping on a bench in the United States confused its affluent parish.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

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

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

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

This museum dedicated to an oft-overlooked support industry features a surprisingly moving brass diorama of a man being saved from a sinking car.

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

A bizarre roadside attraction and the first instance of miniature golf in the world.

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

Enormous lake at the bottom of a unique cave system.

Crumbling ruins mark the site of a couple's grisly murder in the woods.

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

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.