March 18, marks the 25th anniversary of the largest art heist in history.

Posing as police officers, two thieves stole 13 works of art, worth about $500 million, from the Isabella Stewart Gardner Museum in Boston.

During the heist, the robbers made off with three paintings by Rembrandt, one by Vermeer, Manet and Flinck; five drawings by Degas, an ancient Chinese urn and a finial from a Napoleonic flag.

The art remains missing and the museum has offered a $5 million reward for its return.