1) The musical "Les Misérables" is one of the longest-running shows in the West End and Broadway, with over 13,000 performances.

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

3) The world's largest flower is the Rafflesia arnoldii, which can grow up to 3 feet (1 meter) in diameter and weighs about 15 pounds (7 kilograms).

4) The first commercial GPS (Global Positioning System) was launched in 1989 and provided accurate positioning and navigation capabilities to users worldwide.