An enormous natural sandstone bridge in Kentucky.

The world's longest known cave system.

Mussolini gave Cincinnati a bronze statue of Romulus and Remus suckling at a wolf's teats.

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

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

This boulder stays on its mountain thanks to a huge chain and on the map due to local legend.

Rabbit Hash is a heaping slice of Americana from another era, with a very peculiar origin behind its unusual name.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

More than 3,200 cookie jars line the walls and shelves of this little shop and over 1,000 salt and pepper shakers

This bridge uses an inverted bowstring truss and is believed to be the only of its kind in the United States.

This tower-tomb honors a president who only held office for a little over a month but dedicated his life to his country.

An abandoned munitions factory with a shot tower continues to wage war on the surrounding environment.

Inside, ancient treasures. Outside, modern contradictions.

The final resting place of the most famous sharpshooter.