This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

Locals place their offerings on this nightmarish gnarled tree so the witches won't summon another storm.

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

A jukebox headstone marks the grave of the Cleveland disc jockey credited with coining the term “rock 'n' roll."

Inside the unassuming cemetery chapel is a magnificent stained glass window and mosaics.

The only presidential monument to display a late POTUS's actual casket.

The angel of death appears to weep black tears at this grave marker.

A bronze sculpture honors the 12 black students who attended the first integrated public high school in the segregated South.

One of the best-selling bar bands in American music history is commemorated in their hometown's Five Points neighborhood.

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

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

Supplies are schlepped up by llamas at this century-old inn, accessible only by hiking trails in the Great Smokies.

An abandoned town is hidden in Great Smoky Mountains National Park.

This 19th-century building inadvertently preserved the handprints of its builders within its walls.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

A former 19th-century tavern, famous for its peach brandy and honey concoction.

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

Kentucky's longest operating jail is now a spooky spot to spend the night.

This burger joint is named after everyone's favorite carnival prize and is adorned with a giant one over the door.

"Iron Age" creatures fill this huckster's rusted metal sculpture garden.

A collection of 11 million buttons illustrates the human toll of the Holocaust.

The world's third-largest scale model of the planets.