The USA Forest Service has built more than 360,000 miles of various kinds of roads in national forests -- or eight (8) times the entire length of the U.S. interstate highway system.

In the 19th century, it was common practice for a Japanese woman to dye their teeth black. They believed that this enhanced sex appeal and maintained healthier teeth.

The most valuable painting made by a female artist is "In the Box," painted by Mary Cassatt. It was sold for $3.67 million at Christies in New York City.

A M A Z I N G   F A C T S