"Discover the world's most prestigious auction records, including Leonardo da Vinci's 'Salvator Mundi' and David Gilmour's iconic 'Black Strat' guitar, both sold at Christie's. Explore the extraordinary sales of 20th/21st Century Art Evening Sale and The Masterpiece Auction II, featuring Warhol's Marilyn sold for a staggering $195 million, setting the world record for the most expensive 20th Century artwork."