Scouting NY is one of my favorite blogs. Its by a film location scout, but its not about making movies, its about the amazing things he sees on his visits in and around NYC - abandoned buildings, alleys, gargoyles, faded signs. Its just a visual treat.
I loved this recent two-part post he did on the movie Ghostbusters, though, where he compared locations in the movie with how they look today. Clearly, a lot of work went into this! Check it out:
New York, You’ve Changed: Ghostbusters – Part 1
New York, You’ve Changed: Ghostbusters – Part 2