More than five miles of underground passageways.

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

East Nashville's oldest dive bar will bring you back to life with animal-style bar fare.

Visit this playground of waterfalls, caves and sinkholes.

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

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

Home of an evil witch famous within southern folklore.

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

Locals place their offerings on this nightmarish gnarled tree so the witches won't summon another storm.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

Explore the flooded remains of a limestone mine in Kentucky.

Once one of the most polluted caves in America, now an environmental success story and a museum dedicated to caves.

The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

Three legendary, living albino buffalo roaming their pastures for all to see.

A true roadside icon standing on the same plains that the herds once roamed.

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

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

The remains of this visionary community can still be found much as it was a century ago.

The world's longest known cave system.

A miniature world of concrete and stone in Springfield, Ohio.

The surprising home of the iconic Santa Monica Pier Ferris Wheel.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

This steamer is known as "The ship that built Cleveland."

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.