1) The Great Wall of China is not visible from space without aid, contrary to popular belief.

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

3) The oldest known musical instrument is a flute made from a bird bone, estimated to be around 43,000 years old.

4) Automated Teller Machines (ATMs) allow individuals to perform banking transactions, such as withdrawing cash, outside of traditional bank branches.