So 28 out of 100 I wouldnt say many of them are capitals at all.
1. Riga (the capital of Latvia) has 1 million people. Why Riga isn't in this quiz?
2. Wrocław has 638k, Katowice has 300k. Why Wrocław isn't in this quiz and Katowice is in this quiz.
PLEASE FIX THE MISTAKES!!!
For god sakes it actual seems to be partly above france even! (tiny but I just noticed it ;) ) While in reality it misses not only france (if you would go straight south) but also spain ánd portugal. The first thing you would hit would be the canary islands actually. Ow wait, Madeira. (it just misses the azores btw) (and for those thinking of western sahara as separate, it hit western sahara but not the Morocco part of Morocco). Sorry for the long post :) Got wrapped up in facts and measuring, kinda fun to find these things out :)
There are many cities connected to Aachen through built-up area. That's what this quiz uses, as it's a fairer comparison. If you go by city proper, cities in Russia and Ukraine would dominate everything
The urban area of Aachen stretches across the border with the Netherlands and includes Heerlen
Next, you need a file to edit. Quizmaster has written a blogpost on how to do that. Alternatively, you can scrape any existing map from a quiz using inspect-element in the browser
Last, you need to put your data in the map. For this quiz, I put in all data by hand, which requires a lot of editing. For other quizzes, I automated the process. You can use programming to automatically generate data into the svg file. I've done this for quizzes that have more answers
Amsterdam - 821.752
Rotterdam - 623.652
Utrecht - 352.866
For example the urban population of Basel is 170 000 and metro area is 560 000.
Riga URBAN population is 630 000 and Riga metro area is 1M.
How come Basel is in the map and Riga isn't?
That's just an example, there are way more cities that should be there and a lot that shouldn't, but are.