This limestone outcropping was once a ceremonial site for ancient Native Americans.

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.

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

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

This structure among the trees was the result of divine inspiration.

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

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

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

This tombstone marks the final resting place of the beloved 1990's character, Ernest P. Worrell.

Outstanding collection of 19th century medical instruments includes a life-size figure cast from as many as 200 cadavers.

One of the last free public hot springs is decorated with hippie art.

These colossal desert barcodes have been fine-tuning spy satellites for decades.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.