1) The Amazon rainforest produces more than 20% of the world's oxygen.

2) The world's largest particle accelerator, the Large Hadron Collider, is located near Geneva, Switzerland, and spans a circumference of 17 miles (27 kilometers).

3) The Bugatti Veyron, one of the fastest production cars in the world, can reach speeds of over 250 miles per hour (402 km/h).

4) Lightning strikes the Earth about 8 million times a day.