All Places in Tennessee

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.

Home of an evil witch famous within southern folklore.

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

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.

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

Visit this playground of waterfalls, caves and sinkholes.

This replica of the Greek structure is in the heart of Nashville.

More than five miles of underground passageways.

The secret city built by the Manhattan Project.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Mile-long cave system near Great Smoky Mountains.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Walk the whole Mississippi River!

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