Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

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

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

A historic coal mine that doubles as a museum and tourist attraction.

Traditional Appalachian dances such as the Georgia Rang Tang and the Shoo-Fly Swing are kept alive at this weekly event.

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

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

The world's largest fire hydrant is supposedly tornado-proof.

Exact replica of the ancient monument, but much, much lighter.

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

A "hospital" where people went to be quarantined, die, and be buried in the yard.

An overgrown collection of miniature buildings still stand as evidence of one couple's obsession with The King.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

A piece of outsider public art accompanied by a strange urban legend.

A retired tobacco farmer's pet project turned into a sturdy miniature city.

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

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

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

Amazing pre-Civil War ruins alongside a shallow, rocky river that hosts beautiful (but endangered) lilies.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

The language and heritage of a nearly forgotten culture can still be explored in this Southern enclave.

North America's oldest authentic African Village.

One man's extraordinary topiary garden in a small South Carolina town.