I just wanted to share this with you: I downloaded the CM in HD today and noticed the word "Versicherungen" (which means insurances in German) in this scene
and then finally recognized where the CM is supposed to take place. Ayu is supposed to stand in front of the very famous ferris wheel in the amusement park of Prater, which is a large public park in Vienna. Read more:
http://en.wikipedia.org/wiki/Riesenrad