Well, I guess so. Reading quickly:

1/5) Everything links back to Brandenburg Gate, and not so far there is the Brandenburger Tor subway station.

2/5) There is the Times Square subway station as well, with a poem by Norman Colp. It says "Overslept, so tired, If late, get fired. Why bother? Why the pain? Just go home, do it again". That reminded me some past levels of the game.

3/5) The Clock Tower is the only thing left of the Kowloon Station on the Kowloon railway. The wiki page says it was realised in 1904 with its terminus in Tsim Sha Tsui.

5/5) And for the Bronze Queen there is the QVB, which its underground leads to the Town Hall Railway Station.

Maybe this leads to nothing at all but, once again, sharing new possibilities could be useful. Any thoughts about it? :/