| First off, the quiz is about metro areas, so it is valid to include other nearby cities (like Kerkrade and the places Starstruck mentioned) in the counts for Aachen and Helsinki.
I haven't been able to find the source list with the link you provided, but I find it odd that Brussels and Antwerp, as well as some Russian and Ukrainian places like Rostov, Kazan, and Odessa are not on the list. At least some of these should have populations greater than Newcastle's. |