1) The fastest land animal is the cheetah, capable of reaching speeds up to 70 miles per hour (113 kilometers per hour) in short bursts.

2) The Boston Celtics and the Los Angeles Lakers are the most successful teams in NBA history, with a combined total of 33 championships.

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

4) Mount Kilimanjaro in Tanzania is the highest mountain in Africa and attracts climbers from around the world.