Asking for directions is quite difficult in Florence because of the language. The city tour connects most magnificent views and spots of the city specially at the hills of piazza Michaelangelo during sunset, wherein the elegance of the city and the Ponte vecchio (old bridge) is pretty amazing.
Tips: if you are staying for a couple of days, it is recommended to have the Firenze card, which allows you to fast access in most museums and hassle free travel within Florence hence it is also valid for trams and buses.
Note: Most tourist mistakes! even if you hold a bus/tram ticket (agile/ataf), it must be validated first on a small validating machine right after you enter the bus/tram. Unvalidated ticket means a fine of 45 ueros or more.