I'll be in Rochester in August taking my 17yo to visit colleges. I'll also have my 12yo with me. During part of the day, we will leave the 17yo on campus at U of Rochester and have an hour or so to kill on our own. Any suggestions for something fun we can do somewhat near the campus? Although I'd love to visit the Science Museum or the Museum of Play, those seem like they wouldn't be worthwhile to pay for for such a short visit. Any other suggestions? Thanks!