Getty famously negotiatied his grandson's kidnapping ransom in 1973. Getty was an avid collector of art and antiquities. His collection formed the basis of the J. Paul Getty Museum in Los Angeles, California, and more than $661 million of his estate was left to the museum after his death. He established the J. Paul Getty Trust in 1953. The trust is the world's wealthiest art institution, and operates the J. Paul Getty Museum Complexes: The Getty Center, The Getty Villa and the Getty Foundation, the Getty Research Institute, and the Getty Conservation Institute.