The image was spotted in Pakistan, but has since been removed. At the moment, it is unclear if this is an easter egg placed by someone on the Google Maps development team or if a third party is responsible.
As Team Android notes, a similar image was found nearby criticizing Google's review polices. The message reads "Google Review Policy is Crap," leading us to believe that these "easter eggs" are simply third party map makers submitting map data under Google's relaxed reviewing policies.
What do you think? Is someone on Google's team responsible for the image?