Visit this playground of waterfalls, caves and sinkholes.

Enormous lake at the bottom of a unique cave system.

The world's largest set of the ten commandments lay nestled in the heart of the Great Smoky Mountains.

This "Plant Farm Museum" is home to the divinely inspired and visionary outsider artwork of Reverend Howard Finster.

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

Crumbling ruins mark the site of a couple's grisly murder in the woods.

This large cave is a summer home to thousands of bats and has a rich history dating back to prehistoric times.

This stone incorrectly marks the 35th parallel, causing some territorial kerfuffles.

More than five miles of underground passageways.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Live long and prosper in Tennessee.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

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

This historic train station has been converted to a locomotive themed hotel.

Follow the steps, and this roadside artwork will teach you how to dance.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.