Places Pappi D Wants to Go

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

This 19th-century hotel and spa hosted famous guests like like the Vanderbilt family, William Waldorf Astor, Helen Keller, and Jay Gould.

This lavish abode was once the home of the inventor of "Gorilla Pants."

This dam is part of the nation’s largest public power producer and a historic steward of Hiwassee River.

An impressive collection is dedicated to the legendary beast.

Measuring 100-feet tall, the Gennett Poplar is the second-tallest tree in Georgia.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

This "Plant Farm Museum" is home to the divinely inspired and visionary outsider artwork of Reverend Howard Finster.

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

More than five miles of underground passageways.

Sip whiskey in a powerhouse that once belonged to a storied hydroelectric dam.

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

Mysterious library of an infamous financier and spiritual seeker.

A natural sandstone bridge hidden in the Sewanee forest.

This mansion turned restaurant was once a pitstop for Al Capone during his travels.

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

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

In Rickwood Caverns, visitors can travel hundreds of feet underground and see beautiful formations unique to the region.

The site of the one of the most deadly train wrecks in American history.

The small cave that housed Tennessee's "first citizen."

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

The longest navigable underground river in the United States is home to countless blind and albino animals.