This mansion turned restaurant was once a pitstop for Al Capone during his travels.

A 315-foot spire jutting out from the Blue Ridge Mountains makes for breathtaking views.

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

Tombstone of a dog that greeted passengers at the Southern Railway Depot.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

Abandoned for 60 years, this submerged bridge was completely forgotten until the lake was drained.

An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.

Visit this playground of waterfalls, caves and sinkholes.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

More than five miles of underground passageways.

Live long and prosper in Tennessee.

Hidden in the New Mexico desert southeast of Roswell, nine small deep lakes formed inside sinkholes.