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

This museum dedicated to an oft-overlooked support industry features a surprisingly moving brass diorama of a man being saved from a sinking car.

The world's largest collection of porcelain "veilleuses-theiere," or night light teapots, includes four that belonged to Napoleon.

This simple, broken column marks the final resting place of one of America's most famous explorers.

An unknown Hall of Fame in Jackson, Tennessee.

Crumbling Kennedys and a decaying Tecumseh are just some of the haunting remains of one man's cement art trail.

The small cave that housed Tennessee's "first citizen."

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

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

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

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

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

Mile-long cave system near Great Smoky Mountains.

The secret city built by the Manhattan Project.

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

Railroad came. People came. Railroad left. Town died.

More than five miles of underground passageways.

Visit this playground of waterfalls, caves and sinkholes.

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

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

All that's left of the quintessential "cabin in the woods."

Home of an evil witch famous within southern folklore.

Enormous lake at the bottom of a unique cave system.