I'll put this in the links but it deserves mention here: Microsoft has built a database over one terabite in size containg aerial photographs from the US Geological Survey and declasified Russian spy satellite images covering the US, Europe, and many other places around the globe. Look at your house from space! Really! You can zoom back to see your whole city or in to resolution up to 1 sq. meter per pixel. Careful, this site is addicting! Note:images are of varying ages. For ex: the one of my neighborhood is from 11/94, about 10 mos. before my house was built.