1) The most-watched TV series finale in the United States was "MAS*H," with an estimated 105 million viewers.

2) The Mona Lisa, painted by Leonardo da Vinci, is one of the most famous and valuable artworks in the world.

3) A single bolt of lightning can heat the surrounding air to temperatures five times hotter than the surface of the sun.

4) Native American mythology is incredibly diverse, with numerous tribes and cultures across North and South America having their own unique traditions and stories. It encompasses deities, nature spirits, tricksters, and heroes, reflecting the deep connection between indigenous peoples and the natural world.