Name the most populous modern-day urban areas that were once part of the Austrian Empire or the Austro-Hungarian Empire
Only counts cities controlled for at least fifteen years. Does not include Bosnia, as it was administered by Austria, but under Ottoman sovereignty until 1908.
Does not count the Austrian zone in Tianjin
Urban-area population according to citypopulation.de
Sarajevo was under Austrian control for about 40 years, but since 30 of those were "not official" I can see your point. About Novi Sad, I think it comes down to what one believes should be called "urban area", so I won't argue there either. Thanks for taking the time to consider my feedback!
I agree. The line does become blurry, which I why I used one consistent source in making this quiz. I'll make it clear in the caveats that Bosnia is not included