OLIN is an international landscape architecture, comprehensive planning and urban design firm founded in Philadelphia in 1976 by Laurie Olin and Robert Hanna. OLIN’s staff is composed of landscape architects, architects, project managers, and urban planners. OLIN is most recognized for designs such as Bryant Park in New York City, the Washington Monument Grounds in Washington, DC, the J. Paul Getty Center in Los Angeles, 16th Street Mall in Denver, and Columbus Circle in New York City.