Florence is a wonderful city full of art and culture and is the ideal location for an engagement.
The places where do the photo shoot in Florence are really a lot, you can take some pictures in the Piazza della Signoria, just in front of Palazzo Vecchio, one of the historic buildings in Florence and then in the splendid Uffizi courtyard.
One of the spot of Florence that can not miss is the Ponte Vecchio. Especially if it is the hour of sunset, the atmosphere is truly magical.
Walking through the old town you can have some nice photos in less known places and less touristy but equally beautiful. With a short walk you can also reach the Palazzo Pitti that with its Boboli Gardens is another great place to take photos of engagement.
Then, not far you can reach Piazzale Michelangelo with a spectacular view of Florence.