An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

This dam is part of the nation’s largest public power producer and a historic steward of Hiwassee River.

The first documented commercial gold find in the United States.

A Nessie-like monster supposedly lurks in this lake.

Practice your Dirty Dancing lifts in the manmade lake where Johnny Castle himself did.

A historic dam made famous for its turbines and feature in a Hollywood classic.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

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

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

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

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

The first KFC is on the National Register of Historic Places.

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

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

Moonbows over Kentucky.

The world's longest known cave system.

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

A monument marks the location of the first successful steamboat demonstration.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

Spectacular mineral formations fill these caves, which have been used for everything from smoking meat to stashing illicit liquor.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.