The city of Florence has a special tourist card, which is called Firenze Card. It is valid for 72 hours and provides you the admission to 72 museums, villas and historical gardens located in Florence and in the surrounding area.
It costs € 72,00, you can purchase it at some of the museums and at the tourist information offices: piazza Stazione 4 (from Monday to Saturday 9am-7pm, Sunday and holidays 9m-2pm), via Cavour 1r (from Monday to Friday 9am-1pm) and online.
Purchasers of Firenze Card have priority access to museums, provided they use the reserved entrance; the validity of the card starts at the first museum you visit. The access to Brunelleschi's Dome requires a reservation, even for Firenze Card holders.
Every card includes free access to museums for a second person or more if younger than 18 (EU citizens only).
The Firenze Card has also a PLUS version. With the Firenze Card + (Firenze Card Plus) you get more services: you can travel with all city buses for 3 days (the day of the first use and the following two days until midnight), you have free WIFI for 72 hours and commercial partners with discounts and offers. The Firenze Card Plus costs only € 5,00 and you can buy it only if you have the Firenze Card.
You can purchase it online or at the tourist information offices on via Cavour 1r and piazza Stazione, with credit card only.
More info www.firenzecard.it
If you want to know which are the monuments included in the Firenze card and when they are open, please download the pdf document you find on this page. You can recognise them from the "FC" symbol.