It's believed the famed author's parents once used this spring to gather water.

A house built specifically to shelter the dead.

This chestnut box will not be opened until the country music legend's 100th birthday in 2046.

In 1912, a broken section of the reservoir wall released millions of gallons of water and destroyed many homes downhill.

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

Located inside a former bread factory, this museum explores a century of transportation history through innovations that were extraordinary or failures—sometimes both.

John Hendrix predicted the creation of the "Secret City" built as part of the Manhattan Project.

An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.

This Tennessee museum is dedicated to a tragic railroad hero who inspired the famous ballad that bears his name.

This church houses the “incorrupt” body of its founding Bishop.

Victorian-era Egyptomania left its mark on this Nashville landmark.

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

A restored, one-room African-American schoolhouse in the diva's hometown now preserves the legacy of its most famous student.

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

A delightful park featuring homemade scale replicas of dinosaurs, tucked away in the Tennessee mountains.

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

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

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

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

Mile-long cave system near Great Smoky Mountains.

The secret city built by the Manhattan Project.

Visit this playground of waterfalls, caves and sinkholes.

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

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