1) The total length of your blood vessels can circle the Earth more than twice.

2) The world's largest desert is the Antarctic Desert, covering around 5.5 million square miles.

3) The tongue of a blue whale is so big that about 50 people could stand on it.

4) Sir Elton John, born Reginald Kenneth Dwight, is an English singer, songwriter, and pianist. With a career spanning over five decades, he is one of the best-selling music artists in the world and has received numerous awards and accolades for his contributions to music.