Corporate municipal authorities are afforded broad authority to identify and create subsidiary boards, as needed, to preserve scenic and historic resources, including natural and manmade buildings, landmarks, and landscapes. Municipal authorities are charged to prevent the “disappearance [of] areas, places, buildings, structures, works of art and other objects having special historical, community, or aesthetic interest or value.” Municipal authorities may establish economic incentives and other agreements to encourage the acquisition, donation, or transfer of development rights. Municipal authorities may also enter into intergovernmental agreements, as necessary, to protect scenic and historic resources that are contiguous to or cross the corporate boundaries of another governmental unit. 65 ILL. COMP. STAT. 5/11-48.2-2 (2004).