Frederick Law Olmsted’s Jackson Park (including Midway Plaisance and the South Shore Cultural Center)—the designated site of the Obama Presidential Center—tops  Preservation Chicago’s 2018 list of the city’s seven most-threatened architectural treasures.  The annual list puts a spotlight on historic structures and landscapes threatened with demolition in the hope that they can be restored and reused.  

The Washington Park Substation, 6141 S. Prairie: a classical revival-style electrical substation designed by architect Hermann von  Holst, dating from 1928 and 1939.

There’s a quick video tour of the endangered buildings here.