1. The Mona Lisa has its own mailbox in Louvre because so many fans write her love letters. 2. Vincent van Gogh reportedly only sold one painting during his lifetime: 'The Red Vineyard.' He died in 1890, in what is widely believed to be a suicide. 3. The first artists in history used red clay, natural pigments from plants, and ashes for paint. 4. The models in Grant Wood's <span style='font-style: italic;'>American Gothic</span> are his sister (who is wearing their mother's apron) and Wood's 62-year-old dentist. 5. Leonardo Da Vinci's <span style='font-style: italic;'>The Last Supper </span>originally included Jesus' feet; however, in 1652, builders cut into the bottom center of the mural while they were installing a doorway and removed the feet. 6. Sir Isaac Newton popularized the color wheel in 1706 when he demonstrated refracted white sunlight into its six colors. 7. Hitler was an aspiring but failed artist. His artwork was sold in a Vienna store before WW II and were bought primarily by Jews. 8. Tree shaping is a form of art. Artists shape trees into structures such as benches, bridges, fences, tunnels, and more. 9. The U.S. Supreme Court officially recognized video games as art in 2012. 10. In 1961, Italian artist Piero Manzoni created a piece called 'Artist's Shit.' It consisted of 90 cans, each containing 30 grams of Manzoni's feces. 11. The Olympic games previously included gold medals in architecture, painting, sculpturing, and literature. Pierre de Coubertin, the founder of modern Olympics, won a gold medal in literature in the 1912 summer Olympics. 12. An English artist, Andy Brown, stitched together 1,000 used tea bags to create a portrait of Queen Elizabeth II. 13. The town in Vincent van Gogh's The Starry Night is Saint-Remy-de Provence in the south of France. Van Gogh painted it while he was in a psychiatric hospital there. The hospital now has a wing named after Van Gogh. 14. There is a Museum of Bad Art (MOBA) which was created in 1994. 15. The worldwide presence of new isotopes from atmospheric atomic testing in the 1950s led to a reliable way to detect art forgeries. Traces of caesium-137 and strontium-90 did not exist in nature before 1945. 16. Learning and practicing art can lead to higher achievement in reading and math. 17. John Hurwitz created the world's smallest work of art. The only way to see his sculpture, which is in the eye of a needle, is on the screen of a scanning electron microscope. 18. The world's largest painting is 'the Journey of Humanity.' At 17,000 square feet, Sacha Jafri's work is an abstraction that features drips, whorls, and splatters of different colors. 19. The world's most expensive piece of art is Leonardo da Vinci's Mona Lisa. While priceless, it has the highest known insurance value at $870 million. The most expensive piece of art ever sold was da Vinci's Salvator Mundi at over $450.3 million at Christie's auction in 2013. 20. The only work Michelangelo ever signed was 'The Pieta.' He later considered his signature an outburst of pride and vowed to never sign another work again. 21. Leonardo Da Vinci was a procrastinator and often regretted not finishing his works. He allegedly took 10 years just to finish Mona Lisa's lips. 22. The most stolen piece of artwork of all time is 'The Ghent Altarpiece: Adoration of the Mystic Lamb' by Jan Van Eyck.