Admit it. You've always wanted to know where Chicago's last wood-block pavement, tied houses, and black-on-yellow street signs are -- not to mention what became of Almond Street and DeKalb Avenue. Now you can, because the folks at Forgotten Chicago remember. (The "tied houses" are a parable of do-gooder regulation backfiring.) The site is Not Safe For Work...because if you are a true Chicago geek you may well forget to do any.
H/t to the Newberry Library.