The remains of one of America's first radiation testing grounds still rest ominously in a Georgia forest.

A curious whirlpool formation supposedly capable of entangling or engulfing branches, tree trunks, or whole rafts full of hapless tourists.

The world's first time capsule lies behind a welded steel door in Atlanta.

Mai Tais and Navy Grog served up in one of the original tiki bars.

Healing Springs that once ran red with soldiers' blood.

A man's home is his castle.

The ruins of a cotton mill that was burned in the Civil War are still hidden in a Georgia forest.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.

Bad farming practices caused this unnatural natural wonder.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

Ruins of a Carnegie family mansion on Cumberland Island.

An underground magnet for ever-changing street art.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Tour the sci-fi-esque reality of governmental disease management.

The longest-serving U.S. Secretary of State and Nobel Peace Prize winner was born in this humble cabin.

The alley connecting two of country music’s most historic venues has a rich history of its own.

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

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

A heartwarming message to those entering and departing Music City from above.

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

This tiny 19th-century tunnel was built so a man could move his cows from one field to another.