One of the longest water bridges in the world was built over a supposedly haunted swamp in Louisiana.

The world-record holder for the longest bridge stretching continuously over water.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Giant novelty guitars now mark the spot where Robert Johnson is said to have sold his soul to the devil.

This hotel was used during the Manhattan Project to house official visitors.

The secret city built by the Manhattan Project.

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

This boulder stays on its mountain thanks to a huge chain and on the map due to local legend.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

A historic dam made famous for its turbines and feature in a Hollywood classic.

The world's largest set of the ten commandments lay nestled in the heart of the Great Smoky Mountains.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

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

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

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

This building contains handprints that are well over a century old.

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

Stroll around the headstones of notable figures from Knoxville's history, as well as towering monoliths and melancholic headstones.

A roadside music shop featuring a confounding series of folk art installations.

This Tennessee manse was built so opulent that the very utilities doomed it to fail.

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.

Once a gas station, this flightless airplane beside the Old Dixie Highway now houses a barbershop.