cancelled PA 90 freeway
When I was moving to Philly, I found my some of my old Hagstrom maps from when I collected them in my youth (starting at age 7). In my Greater Philadelphia/Camden Atlas, it looks like I FritzOwled the PA-90 freeway somewhat directly across Philly and out to I-76, funnily, in a path that goes RIGHT OVER MY CURRENT HOUSE, i.e. parallel to the street I live on. This routing would require knocking out entire neighborhoods, including all of the row houses on my side of the street in that block. Oops.

I had NO idea I would one day live in Philly.
Back then I understood nothing about RoW taking and eminent domain. I also remember that I hated seeing stub ends in my Hagstrom atlases without a proposed route coming out of them. "Well there must have been a REASON they built it like that," and I often drew in my own.