One of the most exciting videos I have seen regarding this game was one that showed off a train network in a built-up city.  Follow one train for 19 minutes:   http://youtu.be/f2ypNQdw8JY   I would like smaller footprint elevated rail stations, but otherwise, this pleases the model railroader in me.   Edit: I noticed that there are some other videos from this guy linked in another thread. Feel free to move this there.