This nine-story building can be played like an instrument.

An unusual art exhibition in a suburban yard is designed to awaken the souls of those flowing by.

Visit this playground of waterfalls, caves and sinkholes.

These rows of World War II-era bunkers were the scene of some of the infamous Mothman sightings.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

Enormous lake at the bottom of a unique cave system.

Moonbows over Kentucky.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Don't be surprised if you see a long-necked dinosaur peeking out from among the trees in Northgate Park.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Home of a 28-foot tall stalagmite known as the War Club.

An old train trestle re-imagined as an Egyptian obelisk.

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

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

An eerily abandoned stone tower is all that remains of a demolished dam on Cape Fear River.

A historic coal mine that doubles as a museum and tourist attraction.

The scant remains of this flooded historic village can be explored in one of the most remote areas of the Great Smokies.

Mile-long cave system near Great Smoky Mountains.

This former fire tower is now a rustic observatory that offers amazing views of eagles, hawks, and the Appalachian Mountains.

A curious whirlpool formation supposedly capable of entangling or engulfing branches, tree trunks, or whole rafts full of hapless tourists.

An unfinished rail tunnel that has since been used to house cheese and bats.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

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

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