One of the best “must see” tips we got from friends was to have a drink in the Signature Lounge of the John Hancock building instead of paying the admission to the observatory. We arrived a bit before dusk, and managed to get seats right away. Once you have something to sip on, you are welcome to stay as long as you’d like. We admired the view until the sun set, which was just breathtaking. The Chicago skyline is something to see, and it’s especially impressive from 96 floors up! And ladies, there is a great view from the restrooms, though it does feel a bit odd to pull out a camera in there.