Black and white aerial photo

http://www.jaha.org/edu/flood/rebuild/img/panoramas/index.html

These aerial photos are used to provide a large scale view of a landscape that normally wouldn't be possible. The practical uses of this are pretty slim, however. But, in the case of Johnstown, the town was destroyed by a flood and had to be rebuilt completely. These aerial photos show the destruction and multiple rebuilding stages that took place as a whole. The photos provided a view of the entire towns progress instead of just small scenes.