Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

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

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

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

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

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

The first full-scale tunnel built in America is short but scenic.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

Mysterious glowing orbs float through the desert night.

A spring-fed pool so deep it's used for scuba diving as well as swimming.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.