GPS Photo-tagging

GPS photo-tagging units have come along way of late. I just bought a new camera for a project that I hope to do over summer and it requires that I gather the GPS location for all the buildings that I photograph. Some low-end cameras have GPS units built in, but with the more expensive cameras the GPS unit has to be bought separately. Still, they are inexpensive and this one costs only about $70AUS.

And I wish I had the GPS location for all the previous photos that I have taken from various parts of the world. I have 20 years of them from 40 or so countries. Now there is a summer project!