cool quiz, though I'm not sure it's accurate. I've lived in a few of these cities, most recently Riyadh. I mean.. Boston made the list but Houston, San Diego and Miami did not? That doesn't seem possible. And Washington DC surely has more unless maybe you are only counting the city proper and not the metro area. Also maybe in the blurb at the top it would be better to say "largest" rather than "highest," since it appears the list is based only on the number of immigrants and not the percentage. Or say "highest number." Anyway, cool quiz regardless. :)
Yeah, there would appear to be a LOT of cities missing from this list. What is the source? Right off the bat I know my home town of Melbourne (Australia) has more than a million residents born overseas.
Also Spanish and German cities should be there