World Maps Online

What's the most-seen image in human history? Not a logo. Not a painting. Not a symbol. I have a theory (ok, a hypothesis), and I think I can back it up with some back of the napkin-like math.

I'll walk through seven categories of exposure, stack up the numbers, and pit my candidate against the biggest contenders: the Coca-Cola logo, the Christian cross, national flags, and more.

Am I right? Tell me in the comments! I want to hear your candidate.