On 18 March 1990 thieves disguised as policemen handcuffed security guards and stole 13 paintings worth a collective $500 million from the Isabella Stewart Gardner Museum in Boston, USA. It has been described as the biggest art heist in the world and remains as yet unsolved. Vermeer's The Concert, three Rembrandts and a series of drawings by Edgar Degas were among the valuable artworks seized.
