Another picture puzzle
More info that hopefully helps: The tower is located at the Wagramer StraÃŸe in the 22nd district in Vienna. It’s next to the Vienna International Centre. I found a picture in Wikipedia with some towers near the one in question but I don’t think that he is on the shot. Well, I’m still not sure.
You know it? So just tell me in the comments! Some fame and a link (if existent) to the person who can prove the real name.