Aside from Rich's excellent examples, this is a real thing.
For example, these:
The Portlandmaine one is a girl.
Not so sure with this one.
This chick is making an interesting statement here. Consider Africa's position. Is this an unfortunate coincidence or is she subtly saying her opinion about Africa? That said, is she into anal -- what does that say if she is?
Foot fetishists would love this.
Similar questions posed as the above ass map, only this time regarding Madagascar... Here, I can't tell if it's a guy or gal, though I suspect it's a gal. Three more:
Ask this chick if you're ever lost in Hannover. Also, I suspect she'll know everything there is to know about Hannover.
For Yub.
Pos karma to whoever can figure out what city this is by this map