Alfred Hitchcock's movie 'Psycho' was the first American film to show a toilet flushing on screen.

Ancient Norse mythology described the world as a giant tree — Yggdrasil — connecting nine different realms.

Brandon Lee died during filming due to a prop gun malfunction.

Gagaku, Japan's imperial court music, is the world's oldest surviving orchestral tradition, dating to the 7th century.

In Aztec mythology, the sun and moon were created when two gods threw themselves into a fire at Teotihuacan.

The America's Cup is the oldest international sporting trophy, first contested in 1851.

Particles can exist in multiple states until observed.

Norse mythology predicted the end of the world in a cataclysmic battle called Ragnarök.

The Louvre in Paris is the world's largest art museum, with over 35,000 works on display.