So, helpful people: what should I know that I don't know? What's new that wasn't there twenty years ago that should be on a can't-miss list, or even an if-you-have-time list? What's changed about visiting the things that were there that I probably don't know about? The (high-school and college aged) kids are excellent tourists with broad interests, so really anything good is worth knowing about. Any help, or any pointers to further help, would be very much appreciated.