Black and White Aerial Photo

http://www.shutterstock.com/pic-3240699/stock-photo-an-aerial-black-and-white-view-of-midtown-manhattan-new-york.html

Above is a black and white view of downtown Manhattan, New York in a aerial black and white photo.  These are normally used not only to show a great amount of detail about landforms and vegetation, but also to permit accurate mapping of land cover as well as features understandable on regional, continental, and even global scales. Images can the be studied and compared to one another at different points in time.