Here's interesting stuff that I am constantly adding to:   There might be water on Mars. The Leaning Tower of Pisa used to be tilted at about 315 degrees. The fastest roller coaster in the world goes 92 miles an hour! One cleat on the Crawler (owned by NASA) weighs 1 ton! The total earthworm population weighs ten times the human population. A honeybee produces 1/8 of a teaspoon in it's life. In space, you can grow 2.25 inches in a few weeks. The average American drinks enough soda tofill a bathtub per year. The rainforest of Brazil could cover France. A virginian man was struck by lightning 7 times and lived.