The Dome of Florence Cathedral is the main church of Florence, Italy. Il Duomo di Firenze, as it is ordinarily called, was begun in 1296 in the Gothic style.
The Palazzo Vecchio (“Old Palace”) is the town hall of the city. This massive, Romanesque, crenelated fortress-palace is among the most impressive town halls of Tuscany.
Piazza della Signoria is an L-shaped square in front of the Palazzo Vecchio.It was named after the Palazzo della Signoria, also called Palazzo Vecchio. It is the focal point of the origin and of the history of the Florentine Republic and still maintains its reputation as the political hub of the city.
The Ponte Vecchio is a medieval stone closed-spandrel segmental arch bridge over the Arno River
Definitely must-mention is Dante and Inferno (book by Dan Brown, which actually led me to Florence). Throughout Florence, we could see so many Dante masks and statues.