You've seen plenty of photos snapped at the right moment, now check out some that look like optical illusions, but are actually just playing with perspective. I also find it interesting that the bleacher photo is taken in my high school gym.
Epic Floor Design, although I'm not sure what the idea is. if laid with clear or glass tiles to see the design would be different, but to put black tiles over doesn't make any sense. I wonder if you get a magnifying glass to view the floor.