I've been watching with my son, an international studies major, so I realize we may know Europe a little better than the average bear. But, really--could they have possibly found more informed people? Rick and Biggie are the only two who seem to have brains in their heads--maybe Peter, too, since he's a pilot and would, presumably, have some clue of different locations.
I would think if you were picked for the show, even with fairly short notice (like a week), that you would devote your time to looking at maps and reading up on European landmarks, customs, etc.