Curious which list you used. You should accept Kiev, Dusseldorf (for Essen) and the cities that compose West Midlands and East Yorkshire. Washington still needs to be fixed.
This list seems to be all over the place with populations for city limits, urban areas and far flung metropolitan areas.
Case in point, it contains Manilla and its direct suburb, Quezon City. It lists Tokyo and Yokohama, but places Tokyo #1 on the list where it would only be as an overall urban area including Yokohama. If going by city limits, there are numerous cities above it. If going by city limits, Miami would be way down the list, probably replaced by Long Beach, a suburb of Los Angeles or Mesa, a suburb of Phoenix. If going by city limits Portland, Winnipeg and Las Vegas to name just a few belong here.
I could list 1,000s of examples to make sense of the criteria for ranking or inclusion here, but it's nonsensical.
Some more examples from Germany: Essen seems to represent the whole Ruhr-Region while Bonn seems to stand for the Rhine-Region around Cologne, wich is far bigger than Essen or Bonn.
There are also some strange cities in the UK listed which most likely also represent a whole region.
Try making an update and using citypopulation.de for your information; it's the site most of the city quizzes use, for the QM at least. (It'd be a lot of work to essentially make the quiz again though) Also good idea have people comment their scores, but how do we know they're not lying.
UK needs sorting out, west midlands and west yorkshire are not cities, and Preston should not be on here. Also Yekaterinburg is spelled wrong, and should accept medina for al madinah
Source data is inconsistent as many have noted, leading to smaller cities being included over larger, regions listed as cities, and suburbs sometimes being counted as cities in their own right as well as in the larger city, and sometimes not.
358 but this is not really a good quiz. It's inconsistent as it uses the city proper population for some, the metropolitan area for others, and the megacity for the rest. In short you need a unified standard. Also the spelling requirements should be more lenient.
I agree with the rest of the commenters in that this list is kinda all over the place. For example, Bonn, Koln, and Essen are all separate even though West Yorkshire is on the list instead of it being Leeds. If West Yorkshire is listed, then the Ruhr needs to be listed. Also way more spellings need to be accepted. Like almost no one calls it Ekaterinoburg. You should accept Yekaterinburg. You should also accept many others like Cologne, Isfahan, Munich, and Hohhot. Also why are there two separate entries for Caloocan City. 356 is Caloocan and 357 is Kalookan?? This quiz needs major updating.
Case in point, it contains Manilla and its direct suburb, Quezon City. It lists Tokyo and Yokohama, but places Tokyo #1 on the list where it would only be as an overall urban area including Yokohama. If going by city limits, there are numerous cities above it. If going by city limits, Miami would be way down the list, probably replaced by Long Beach, a suburb of Los Angeles or Mesa, a suburb of Phoenix. If going by city limits Portland, Winnipeg and Las Vegas to name just a few belong here.
I could list 1,000s of examples to make sense of the criteria for ranking or inclusion here, but it's nonsensical.
There are also some strange cities in the UK listed which most likely also represent a whole region.
Tokyo and Yokohama have to be combined to make Tokyo number 1, to say the least.
Actually I can reach 300+