Take a look at the ten images below. Some of them are photographs
of real objects or scenes, others are created by computer graphics
(CG) artists. Test your ability to tell which among the array of
images are real, and which are CG. If you want a closer look, click
the image to see a larger view of the picture. Once you've decided
what's what, click either CG or REAL to begin the tally of your
score. Work through each of the ten images. When you've finished,
you'll be prompted to get your score.
I got 7/10. A couple of the answers definitely surprised me though.