Since its formation in 1955, Pei Cobb Freed & Partners (formerly I. M. Pei & Partners) has completed more than two hundred projects in over a hundred cities across North America and around the world. The firm's clients have included major corporations, private developers and public authorities, as well as educational, cultural and religious institutions. Among its best known works are the John F. Kennedy Library, John Hancock Tower and John Joseph Moakley United States Courthouse and Harborpark in Boston; the Morton H. Meyerson Symphony Center and Fountain Place in Dallas; Bank of China Tower in Hong Kong; First Interstate Tower in Los Angeles; First Bank Place in Minneapolis; Jacob K. Javits Convention Center in New York; National Constitution Center on Independence Mall in Philadelphia; Rock and Roll Hall of Fame and Museum in Cleveland, the expansion and modernization of the Louvre museum in Paris; San Francisco Main Public Library; and the East Building of the National Gallery of Art, the Ronald Reagan Building and International Trade Center and the United States Holocaust Memorial Museum in Washington, D.C. Included in the great diversity of building types that the firm has explored is an extensive collection of tall buildings.