http://www.topstrange.com/look-a-little-bit-closer-2634?utm_source=wahoha.com&utm_medium=referral&utm_campaign=wahoha
Some of those are really cool. Some, I just don't get. The first one I'm just not sure what deal is.
The brain cell vs. the universe comparison is actually very neat. I watched a Nova special on fractals, which talked about neat things like that.
I never noticed that Conan O'Brien's backstage is actually a rendering of Super Mario 3. If it was accidental, that's almost harder to believe.
The second comparison between the Mario clouds and trees/bushes isn't too big of a deal. Lots of games used the same sprites for different things.
The Richard Dawkins comparison is hilarious.
I believe that Fry from Futurama was intentionally made to look like James Dean.