My boys are very interested in Rome and Biblical history. They find all kinds of examples of advanced technology in their books.
I'm very happy for your opportunity to travel to the Mediterranean. Someday I'll be retired!
I found the Vatican interesting and love the museums, etc. but if I find myself back in Rome someday, I'll pass on the Vatican.
It strikes me as somewhat claustrophic with all the people. It is also usually very hot.