You can’t visit Florence without exploring the Piazza del Duomo.
You’d have no problem whatsoever spending a full day (or two) making your way through this beautiful square. It’s filled with notable works of art and architecture. The doors of the Baptistry showcase incredible works of art that historians believe to be the beginning of the Renaissance.
The main draw, of course, is the Duomo– aka Cattedrale di Santa Maria del Fiore. Construction began in 1296, but wasn’t finished for over 170 yeas. The cathedral’s crown jewel has to be its dome– which, by the way, is not called the duomo. The word duomo refers to the entire church. They’re just words that happen to sound a lot alike!
Anyhow, if you’re able, I highly suggest climbing to the top of either the dome or tower. You’ll get incredible vistas of the city, not to mention burn off all that bread and pasta you surely devoured the previous night.