looks like you had a blast! i love road trips so i'm totally jealous.
one of my favorite places to go is niagara falls, canada. not only is it absolutely beautiful, but you never run out of things to do once you're done experiencing the falls.
i have eaten at that ufo diner!! and i loved it! i wasn't expecting the food to be all that good, but i was definitely pleasantly surprised.
also, i used to live in cleveland. haven't been to the rock n roll hall of fame in YEARS but if you go when they have the right exhibits it's really amazing. for example, the last time i went, they had a jim morrison exhibit in which they displayed lots of his childhood school papers, christmas cards he hand made for his parents, etc. it was quite a treat.