I am flying over a city with tram tracks running down the middle of the street, indicating a European urban environment. The signs, such as "elektro-b-markt," are in German, and the architecture is typical of Central European cities. The overcast sky and wet streets suggest a temperate climate. The overall aesthetic strongly points towards Austria or Germany. I suspect this is Vienna, Austria, given the specific style of the buildings and signage.

I am reasonably sure this is Vienna, Austria.

then: guess