The purposes of this part are to provide for the establishment of a historic preservation commission and architectural review board, and to promote the educational, cultural, economic and general welfare of the City of Decatur, in Morgan County, Alabama, through the preservation and protection of buildings, sites, structures, areas, and districts of historic significance and interest; through the preservation and enhancement of the national, state, and local historic, architectural, archaeological, and aesthetic heritage found in Decatur’s historic and aesthetic attraction to tourists and visitors.