I tried this again... the closest I got to anything was 33km from Paris! Wait! I just got 20km from Stonehenge. (And then I forgot to pause, while writing that, so I totally lost out on any points for the Taj Mahal... )
Europe is great - as long as you know the country you can't get that far off. :P South America, Africa and the island nations aren't so great... my score seems to depend on how often they come up. Everything else is pretty okay, though.
Got to level 8, IQ. 102.
Edit: WOAH. 2km from Sydney!
Screenshot to prove:
And I got level 10, IQ 113. I think I'll leave it there.