A female can produce up to twelve litters of twenty rats a year. See more

One pair of rats has the potential for 15,000 descendants in a year. See more

The Netherlands has built 800 miles of massive dikes and sea walls to hold back the sea. See more

It took approximately 2.5 million blocks to build the Pyramid of Giza, which is one of the Great Pyramids. See more

Rats multiply so quickly that in 18 months, two rats could have over a million descendants. See more

Close to 80% of people who watch the Super Bowl on television, only do so to view the commercials. See more

In the 1800's, people believed that gin could cure stomach problems. See more

Toxic house plants poison more children than household chemicals. See more

Thomas Edison designed a helicopter that would work with gunpowder. It ended up blowing up and also blew up his factory. See more