Building-by-building directions! Just click the 'Skyway Directions' link in an information balloon you want to get to (as long as it's connected to the skyway), choose your starting point from the building dropdown list, and click 'Go' to see the list of buildings you must travel through to get from point A to point B. It might not always be clear which building you are in while you're walking, but for the most part skyway buildings are well labeled.
So go take a journey!
More in our 'Skyway directions' blog post