Various high resolution historic aerial photograph overlays for various cities. I will continue to add additional locations as I have time.
The collection currently includes the following:
Los Angeles 1948 (Aerials from USGS)
New York City 1954 (Aerials from USGS)
Oakland, California 1948 (Aerials from USGS)
Chicago, 1938 (Aerials from Illinois Natural Resources [...]