In his later years, Annenberg became one of the most prominent philanthropists in the United States. He established the Annenberg Foundation in 1988 and personally gave over $2 billion to educational establishments and art galleries, including both the Annenberg School for Communication at the University of Pennsylvania and USC Annenberg School for Communication and Journalism in Los Angeles. At Sunnylands, his 220-acre estate near Palm Springs, California, he entertained royalty, presidents and other celebrities; it is now a museum and retreat center dedicated to furthering the Annenbergs' legacies.