The recent Louvre heist has brought renewed attention to the seven biggest art robberies in history: the 1911 Mona Lisa theft, Montreal Skylight Caper, Gardner Museum raid, Cellini Salt Cellar theft, Munch Museum robbery, MoMA "Spiderman" heist, and Dresden's Green Vault jewel heist. These daring crimes exposed security flaws and stole priceless masterpieces and continue to fascinate the world.