Battistero di San Giovanni

The Baptistery of San Giovanni stands as Florence's oldest building, an octagonal Romanesque masterpiece from the 11th century. Here, every Florentine child was traditionally baptized, including Dante himself. Lorenzo Ghiberti's gilded bronze doors depict ten Old Testament scenes in great detail: Michelangelo famously called them the Gates of Paradise. Once you see Adam and Eve's expulsion or Noah's ark rendered in luminous bronze relief, you'll see why this description exists. Inside, your neck will crane upward at Byzantine mosaics covering every inch of the dome, dominated by a colossal Christ in Judgment surrounded by angels, saints, and scenes of paradise and hell.

Walking around the octagonal interior feels intimate despite the soaring space above. The geometric marble floor patterns draw your eye while that massive mosaic dome commands attention with its golden glow and intricate biblical narratives. Most visitors spend their time photographing the exterior doors, but the real magic happens when you step inside and let your eyes adjust to the dim, jewel-toned light filtering through the mosaics. The acoustics are remarkable too: whisper against one wall and someone across the octagon can hear you clearly.

Here's what few guides mention: the famous doors you're photographing outside are copies installed in 1990. The originals live safely in the Opera del Duomo Museum, which costs €15 but offers much closer viewing of Ghiberti's actual masterwork plus Donatello sculptures. We recommend skipping the audio guide here and saving your money for the museum instead, where you'll need it more.