#9. The Mona Lisa
The famed Leonardo da Vinci painting, the Mona Lisa, was stolen from the Louvre Museum in Paris, on August 21, 1911. Strangely, no one even noticed it was gone until the next day. It was ultimately discovered that a handyman, Vincenzo Peruggia, who was hired by the museum to make glass cases, stole it. So how did he pull it off? It was a very simple plan: he hid in a closet overnight, took the painting off the wall when the museum was closed, hid it under his cloak, and walked out with it. During that time period, security wasn’t the museum’s highest priority. The police were just as inept as the security team. Vincenzo Peruggia was questioned as a suspect twice before authorities realized it was him, and at one point, artist Pablo Picasso was even a suspect. Two years later, Peruggia tried to sell the painting and the police set up a sting operation. He was arrested and sentenced to seven months in jail.