Love SpacingToronto’s Before/After photo series. (I had a similar idea involving vintage postcards of various cities…but when you snooze, you lose.)
Reminds me of other delightful old/new transitioning-spaces projects, like the charming Dear Photograph website, or Stewart Brand’s still-relevant book (and subsequent 6-part BBC television series!! Who knew?), How Buildings Learn: What Happens After They’re Built.
(infographic inspired by How Buildings Learn)
Less urban-y, but also cool: