12/9/2013 2:12 PM
Google Earth has some, too. If you're looking at your course, down at the bottom left hand corner there should be a clock symbol and a year. Click on the year, and it goes to that year (should be as far back as they have), then at the top left you'll get a slider that lets you select from whatever historical images they have. You have to zoom in pretty close before it shows up, and it only goes back to 1993 in my area, not sure if that changes in other areas or not.