After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

America's only nuclear missile silo open to the public.

The fading, forgotten remains of a once bright and booming factory.

A collection of massive stacked rocks in Texas includes a snarky note on the benefits of modern technology.

A tribute to the little-known group of women who were the first ever to fly aircraft in the U.S. military.

A museum dedicated to the lovable crime couple Bonnie & Clyde, just a few miles away from the site of their early demise.

The final resting place of the camel who served with the Confederate Army during the Civil War.

The ill-fated plan to reroute the Mississippi so that Union ships could bypass Confederate fortifications on the river bend.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

This historic general store still operates much as it did in the late 1800s.

A collection of huge Pre-Colombian structures in Alabama.

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

Built in 1785, this residence is the oldest stone house in Georgia.