ANY ADVICE?

buongiorno! I need your help! i am wanting to go traveling in the later half of this year, and was wondering if any of you have done this before or have any advice etc? I want to go to Italy and do art history. But i don't know where to go, Milan, Sienna, Rome, Florence? and what school is good? SO if any of you have any ideas let me know! would be greatly Appreciated.

Thanks for the support

xx