The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

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

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

Mysterious library of an infamous financier and spiritual seeker.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

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

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

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

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

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

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

The oldest operating pharmacy in the world features 800-year-old recipes.