The reason firehouses have circular stairways is from the days when the engines were pulled by horses. The horses were stabled on the ground floor and figured out how to walk up straight staircases.

The first drive-in service station in the United States was opened by Gulf Oil Company - on December 1, 1913, in Pittsburgh, Pennsylvania.

The eyes of the chameleon can move independently. It can see in two different directions at the same time.

AMAZING FACTS