Thursday from 2 to 3:30 PM, On the Trail of a Disorderly Future–a walking tour of the Chicago Pedway–explores the tunnels and bridges that connect 40 blocks of downtown Chicago and “reimagines the tunnel’s origins according to residual undercurrents in our urban history.” Meet at the southwest corner of Wacker and State, and bring train fare. RSVP recommended to disorderlyfuture[at]gmail.com. Part of Version>09.