On the Uptown Tour (blue line) be prepared to wait at stops up to 2 hours. It is not really a hop on, hop off tour. It’s more like a “Get the heck off, get back on in two hours tour.” Think you can use a QR code on your cell? Nope, you must get a paper ticket before boarding. While we were doing that, the top filled up. The audio tour is so dumbed-down, it sounds like it was produced by Blues Clues, which didn’t matter because the audio tour was not lined up with what we were seeing. I kept reminding myself not to let the frustration of this tour ruin my day, but I’ll just say, save yourself the hassle because it was a total waste of a day and money.