Our family of 4 enjoyed the Chicago Hop-on Hop-off Tour. We started our tour at stop 13 because it was right next to a McDonald's where we could have breakfast and then head to the Sears Tower on stop 1. Even though we were there by 915, there was already getting to be a long line, or so we thought. The line was much worse when we left. We got off some stops, and others just rode by, but really enjoyed listening to the commentary of the tour guide. We learned and enjoyed things so much more than if we had just been walking by on our own.