It's simple. Grab your camera before your next run. Take a pre-run photo of yourself. Then take one photo of whatever is directly in front of you at the end of each mile (I snapped one every time my Garmin beeped). And then, when you are done, take a post-run photo of yourself.
I'll go first. My figure eight course took me through four different towns along the way. Here's what I saw at each mile marker ...
Pre-Run
Mile 1
Mile 2
Mile 3
Mile 4
Mile 5
Mile 6
Mile 7
Mile 8
Post-Run
So, what do you see on your run?