places like Boston

Me
I saw a post similar to this the other day and now I can't find it. I've been to Boston before and it is beautiful and I wanna take my husband to a city similar to Boston. I don't wanna redo Boston simply bc I've already been. Does anyone know of any cities that are similar to Boston? We will be planning our vacation for September/October bc we want to see the fall colors. We will have a 9month old with us. Any ideas?