Memorials are nearly all that remains of this Arkansas prison camp, where thousands of Japanese Americans were forcibly relocated during World War II.

A restored schoolhouse was once a vital part of the Black mill workers community in Arkansas.

An engraved boulder marks the spot where Patsy Cline's life ended in a plane crash.

The Man In Black grew up in a large agrarian community established by the federal government in the Great Depression.

The scant remains of an expansive indigenous civilization can be seen at this Arkansas state park.

The R&B singer's modest church guarantees a religious experience, regardless of your beliefs.

A reclusive Memphis neighborhood is home to decades worth of misunderstood Masonic folk art.

A house built specifically to shelter the dead.

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

An oversized metal construction of Billy Tripp's moods going through life.

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

Visit this playground of waterfalls, caves and sinkholes.

More than five miles of underground passageways.

Mile-long cave system near Great Smoky Mountains.

The first full-scale tunnel built in America is short but scenic.

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

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

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

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

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

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

Home of an evil witch famous within southern folklore.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Enormous lake at the bottom of a unique cave system.