Correction. Just looked at one of the other posts about Terraserver. Just looked at the photo from there. On Terraserver.com. the military academy shown above appears to show the property in some stage of it's re-development. As a non-subscriber, I can only zoom in to about 8 meters so I can't tell how far along they are. The building is definately gone and roads are in. I looked at a related site,
www.terraserverusa.com and there is a black and white photo that shows the buildings still there. Terraserverusa also offers you the ability to get topographic maps as well. On Terraserverusa, the athetic fields that I mentioned above, the ones on the land fill, are not there, The navy base that was closed and has been redeveloped for at least 5 years now still shows the runways there. The landfill has dirt roads and no sign of any developement.
I guess what I am trying to point out here is that all these sites can be good when used in conjunction with eachother. While they won't go that far back, if you have areas around you of recent development, you can find some interesting outlooks on how the properties used to be before the bulldozers came in.
EDIT: Just noticed something looking at the local live site quoted above. I looked at the same academy site and saw that a current street map is overlaid on an old photo.Appearently the same photo used on Terraserverusa. When I was there, last May, I was curious where the building stood as it was hard to relate among all the new homes and changed roads. Looking at the local.live site, I can see where the building was in relation to the current streets. Also, other out buildings are seen in relation and I could, assuming permission being granted, go back and search around certain areas that I know of that might be high targets for finding lost items. I don't have a huge positive outlook on that though as so much of the areas where I know that students hung out and spent time... or where visitors parked or stood to watch sports or parades and such have all been built over. However, there might be some small areas to try and hit, before it is too late.
I think I am going to go to the developers site now and see if any parcels are still available for sale. Not that I could buy a million dollar piece of property but maybe I could get easier access to search the unsold parcels.