A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

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

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

Lines from a walking song are etched into a rock in Natural Bridge State Park.

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

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

A humble plaque marks the site where the country music legend was found dead in his Cadillac.

This sprawling museum holds one man's giant collection of real tanks.

Home of a 28-foot tall stalagmite known as the War Club.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

This abandoned amusement park was built on a site with a dark history.

Paranormal investigators claim this abandoned asylum is the most haunted spot in the eastern U.S.