This site was created because of the old Pittsburgh maps published so long ago. These maps were overlayed on each other and the Pittviewer was born (see it live here): http://peoplemaps.esri.com/pittviewer
When the maps were stiched together, I often wondered if the places on these maps still existed, or moved, or are they gone forever? This blog is a way to find out more about these places, and take a closer look at details long forgotten. I encourage anyone with information about these sites to post and even suggest new ones!