1) Michael Jackson's album "Thriller" is the best-selling album of all time, with estimated sales of over 66 million copies worldwide.

2) The hamburger, consisting of a ground beef patty served between two buns, is an iconic American food. It has gained global popularity and countless variations, from classic cheeseburgers to gourmet creations with unique toppings and sauces. The invention of the hamburger is often attributed to Louis Lassen, a Danish immigrant in Connecticut, who served the first hamburger in the early 20th century. Today, hamburgers are a staple in fast-food chains, casual diners, and backyard barbecues around the world.

3) The strongest natural material known to man is spider silk. It is stronger than steel and more flexible than nylon.

4) The musical "The Phantom of the Opera" has been running in London's West End since 1986, making it the longest-running musical in history.