old-chicago post-office-building-request-for-proposals

https://en.wikipedia.org/wiki/Old_Chicago_Main_Post_Office#History

http://chicago.curbed.com/2016/2/23/11099924/the-sad-saga-of-chicagos-old-post-office-redevelopment

http://www.cityofchicago.org/city/en/depts/dcd/supp_info/old-post-office-building-request-for-proposals.html

https://www.google.ca/search?q=chicago+post+office+redevelopment&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwjl8Oi5xYLOAhUDy2MKHW48Bm0QsAQIHA&biw=1276&bih=671