Two interesting quizzes. The format (answer key at the end) is a pain because you either need to open the links in two windows or scroll a lot…
1) NASA or MOMA? Is it space imagery or abstract art?
http://www.theatlantic.com/technology/archive/2013/03/nasa-or-moma-play-the-game/274212/
2) Macro or Micro?
http://blogs.smithsonianmag.com/artscience/2013/10/macro-or-micro-test-your-sense-of-scale/
H/T S. John Ross
http://blogs.smithsonianmag.com/artscience/2013/10/macro-or-micro-test-your-sense-of-scale/
Micro