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

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

More than five miles of underground passageways.

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

Visit this playground of waterfalls, caves and sinkholes.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

Moonbows over Kentucky.

The world's longest known cave system.

This abandoned nuclear cooling tower casts a shadow over a bucolic town.

This park contains one of the largest concentrations of cedar glades, a unique and rare ecosystem.

East Nashville's oldest dive bar will bring you back to life with animal-style bar fare.

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

Flaunt your karaoke chops at this pitch-perfect dive bar.

This replica of the Greek structure is in the heart of Nashville.

This quirky local sculpture is quite literally a fish out of water.

This seasonal soft serve shack has been doling out silky swirls since 1951.

Dinosaurs invade a suburban Nashville neighborhood.

A charming monument to a very special dog.