Penn Central Transportation Co. v. New York City, 438 U.S. 104 (1978) was a landmark United States Supreme Court decision on compensation for regulatory takings.The New York City Landmarks Law was signed into effect by Mayor Robert F. Wagner, Jr., in 1965. This law was passed after New York citizens grew concerned over the loss of culturally significant structures such as the Pennsylvania Station, demolished in 1963. The Landmarks Law's purpose is to protect structures that are significant to the city and still retain their ability to be properly used. This law is enforced by the New York City Landmarks Preservation Commission.