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

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

Live long and prosper in Tennessee.

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

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

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Walk the whole Mississippi River!

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

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

Home to drunken tower-climbing goats... seriously.

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

Mile-long cave system near Great Smoky Mountains.

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

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

The secret city built by the Manhattan Project.

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

Visit this playground of waterfalls, caves and sinkholes.

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

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

Home of an evil witch famous within southern folklore.

Enormous lake at the bottom of a unique cave system.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

This airfield is home to a number of retired vintage planes in various states of disrepair.

The perfect place to take a family of giants for a beach vacation.