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

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

Railroad came. People came. Railroad left. Town died.

More than five miles of underground passageways.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

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

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

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

A strange history museum, with items accumulated by a pair of globe trotting spies.

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

Mile-long cave system near Great Smoky Mountains.

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

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Tour the sci-fi-esque reality of governmental disease management.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

Bad farming practices caused this unnatural natural wonder.

This folk art compound was built by a fortune teller on the advice of three people from the future.

The haunting remains of a failed housing development can still be found behind the big box stores that were to anchor them.

The ruins of a once massive plantation are now a private residence hidden in the Florida wilderness.

Where manatees are the snowbird vacationers in these balmy Florida springs.

The ruins of a Florida miracle spring resort make it seem like a wonder that this was ever a health spa.

The scuba diving training facility was named for the steam that rises from the cave's chimney.