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

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

The site of the one of the most deadly train wrecks in American history.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

This popular park is home to a sea serpent sculpture that now overshadows the twisted history of its creation.

One man has spent decades faithfully constructing this unique brick and cinderblock castle.

These early tent-shaped grave coverings are unique to Appalachia.

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

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

It may take some time to locate, but it's sure to warm even a heart of stone.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

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

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

This defunct, fortress-like prison has been the setting for several movies.

This former maximum-security prison is creepy, sobering, and supposedly haunted.

Dinosaurs invade a suburban Nashville neighborhood.

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

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.

Live long and prosper in Tennessee.

An abandoned town is hidden in Great Smoky Mountains National Park.

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

Visit this playground of waterfalls, caves and sinkholes.

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