Open https://app.quizzingbee.com/v1/#/Quizzes/5/openWho and press on ‘Start’.

When you have answered the question you will often see a montage of pictures of the capital, which is very nice to get an impressions about the capital.

All in all this quiz contains ~160 questions, and as always gives background information – in different languages. Next to english also available in …
german “Hauptstädte der Länder der Welt”
spanish “Capitales de los países del mundo”
french “Capitales des pays du monde”
portuguese “Capitais de países do mundo”
russian “Столицы стран мира”