This was taken in San Francisco at the Embarcadero Center. On the second level, just above the street is a beautiful walkway spanning all 4 of the towers. Leading up to the floor are several spiral staircases - this being among them. Using the iPhone's wide angle lens, I shot this looking down. Just as I was taking the shot, a guy walked into the frame thus giving the photo a little more relatively. I edited the shot using the built in photo editing tool.