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

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

The secret city built by the Manhattan Project.

A Mormon place of exile in Missouri.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

An adorably sweet display of sculpted Precious Moments figurines.

This former small town was destroyed not by the motor oil it sprayed the ground with but by the toxic waste that was added.

This architectural triumph is the only Frank Lloyd Wright house in Alabama.

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