Great views over the city from this engineering ma...

Great views over the city from this engineering marvel. Don't buy front of the line tickets as they're not needed - the lines are really short anyway. You get around 10 mins on the sky bridge at level 42, then go up to the observation platform on the 85 floor, followed by a short visit to level 83, where there's a gift shop. The gift shop at ground level has a lot more choice and is surprisingly good value.