The Landmarks Preservation Council of Illinois – also known as Landmarks Illinois – is a not-for-profit organization founded in 1971 to prevent the demolition of the Dankmar Adler and Louis Sullivan designed Chicago Stock Exchange Building. Although this effort failed the organization has grown to become a 2000-member statewide voice for historic preservation. The founding mission was "to stop the demolition of significant buildings in downtown Chicago." The LPCI has broadened its scope and geography "to embrace architecturally and historically significant archeological sites, structures, and historic districts in all the cities, towns and rural areas of Illinois." Today LPCI holds conservation easements on 341 properties. Among the historic buildings they have saved are the Marquette Building and the Reliance Building. More information...
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