A roof on Soldier Field could be possible, but cost and tradition make it unlikely
Soldier Field Stadium Guide
Soldier Field - Chicago Bears (NFL)
Soldier Field Aerial
Chicago Fire soccer team relocating to Soldier Field
Soldier Field is an American football stadium located in the Near South Side of Chicago, Illinois. It opened in 1924 and is the home field of the Chicago Bears of the National Football League (NFL), who moved there in 1971.