Never say never. The Mona Lisa (1503), undoubtedly the main attraction at the Louvre, was stolen in 1911 and recovered two years later. The thief, Vincenzo Peruggia, was an Italian handyman working at the Louvre and was caught trying to sell it.

A “pre-preview” of Art Basel Paris this week drew some of the world’s wealthiest art collectors. Dealers were hoping to shed some of the recent gloom that the art market has faced.

Myles Connor walked into the Museum of Fine Arts in Boston, and walked out with a Rembrandt painting in the 1980s.

But it wasn’t the first time the Louvre has been hit. In 1998, the Paris museum was robbed twice in back-to-back humiliations that forced officials to overhaul its security system.