The Duomo tour usually lasts 1.5 to 2 hours and takes you through the vast Gothic cathedral, its archaeological area underneath, and up to the famous terraces. Inside you'll see the soaring columns, stained glass, and intricate details that make it feel both grand and slightly overwhelming. The real highlight for most people is walking on the roof among the spires and statues with close-up views over the city. Expect security lines, crowds around the main entrance, and a fair amount of stairs unless you pay extra for the elevator. The experience feels more like a serious architectural visit than a quick photo stop.
Best time to go is spring or fall when the weather is mild for the rooftop. Avoid July and August if you dislike heat and crowds. Early morning tours (first slot of the day) are noticeably less crowded. Expect to pay around €25-€45 per person for a standard guided tour including terraces; private tours or elevator access push it toward €70-€100. Skip the basic self-guided cathedral ticket if you're short on time; the rooftop is what makes the visit memorable.
Honest tip: book a small-group tour that includes both the interior and terraces with an elevator option if you want to avoid 250+ stairs. The archaeological area beneath is interesting but skippable if you're tight on time or energy. Wear comfortable shoes and bring sunglasses; the roof can be blindingly bright on sunny days.
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