This is a challenge, but not a contest. The point of view is from above, looking at the tops of things, railroad things, of course. But, since this forum is interested in details often missed wheh photographing trains, we want details only, not whole trains or whole rolling stock. So, let's see what you can find in the way of details that usually can be seen only from above. For starters, this example is a picture I used in another thread. Here we have EMD cooling fans installed on the top of an Alco RS-3m.