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

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.

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

An abandoned bait shop with a front lot filled with storage boxes.

A delightful park featuring homemade scale replicas of dinosaurs, tucked away in the Tennessee mountains.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

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

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

A curious whirlpool formation supposedly capable of entangling or engulfing branches, tree trunks, or whole rafts full of hapless tourists.

A sculptor's dream castle turned fantastical ruin.

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

This bridge is haunted by the ghost of a distraught mother.

An unfinished rail tunnel that has since been used to house cheese and bats.

This research center for rare prosimians is studying how they sleep to help prolong human life.

This Transylvania County city is home to a rare white squirrel population that is descended from an escaped carnival animal.

This woodland architectural installation acts as a camera obscura for the heavens.

The highest point in South Carolina was once owned by an energy company that neglected it but now the state is taking it back.

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

Jule Körner's house full of bizarre architectural details.

These eerie outliers of the lightning bug family glow a mysterious blue color.

Rotting dome home spotted near Chapel Hill, North Carolina.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.

Garden dedicated to native carnivorous plants and site of huge flytrap heist.