Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

The ruined remains of a coal mining ghost town are hidden within the woods.

This kitschy tavern is also home to rare early editions of "Treasure Island."

After the oysters have been shucked, and the restaurant's been shuttered, the terrazzo sidewalk from the 1940s is all that remains.

The South's nickname was supposedly born at a former bank in New Orleans' French Quarter.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

The only rotating bar in New Orleans has been slowly spinning since 1949.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

A historic canal winds through a unique, swampy landscape.

A once-groundbreaking power plant turned into a hotel and mini-museum of archeological and geological wonders.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

These cliff and rock formations are made out of Sioux Quartzite.

This erect, phallic geological spire wasn't always named so domestically.

This Pringle-shaped ledge makes for the perfect photo op.

A railroad lift bridge that was only lifted once and became obsolete before construction was finished.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

Buy a token from the liquor store and you can make this beast spew flames on command.

Chilly air billows out from the entrance of an abandoned mine on a steep hillside, providing a refuge for Ice Age fauna and flora.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

The lowest point in the state of Illinois, at the confluence of the Mississippi and Ohio rivers.

European castle ruins in an American state park are actually the product of death and grief.