Basilica di San Pietro
The largest church in Christendom — Michelangelo's dome, Bernini's baldachin over the papal altar, and the Pietà behind glass to the right of the entrance. Free to enter; the dome climb (551 steps, partial lift) gives the best rooftop view in Rome.
There's no ticket for the basilica itself, but expect airport-style security and a strictly enforced dress code — shoulders and knees covered, for everyone, regardless of the weather. The dome climb splits into two options: with or without the lift, though the lift only covers the first stretch, since the final climb up the narrowing curve of the dome is on foot either way and involves some tight, low passages. Arriving before the security queue builds in the piazza is the most reliable way in, especially on a Wednesday, when a papal general audience can draw large crowds to the square itself.
This is the largest church in Christendom, built over what tradition holds is the burial site of St Peter himself, and it took over a century to finish — Bramante, Michelangelo, and Bernini all worked on it in succession, which is part of why it doesn't read as any one architect's building.
Entry is free. The security line to get in, on the other hand, is not optional, and neither is the dress code.
No ticket, but a real dress code
There's no admission fee for the basilica itself, but expect airport-style security screening at the entrance and a strictly enforced dress rule — shoulders and knees covered, for everyone, regardless of weather or how far you've walked to get there. Guards turn people away at the door for this daily, and there's no changing-room workaround; bring a scarf or layer if you're at all unsure.
Arriving before the queue builds in the piazza is the most reliable way in. On Wednesdays specifically, a papal general audience can draw very large crowds to St Peter's Square itself, even for visitors with no interest in attending — worth checking the schedule if a Wednesday visit is unavoidable.
Michelangelo's dome, and the two ways up
The dome climb is 551 steps total, split into two options: with a lift for the first stretch, or entirely on foot. Even with the lift, the final climb up the narrowing curve of the dome itself is unavoidably on foot, through some genuinely tight, low passages that follow the dome's own curvature — worth knowing if you're not comfortable in enclosed spaces.
The reward at the top is the best rooftop view in Rome, looking straight down Bernini's colonnade and out across the whole city. Michelangelo designed the dome but died before it was completed; the version standing today was finished by Giacomo della Porta, who altered the proportions slightly from Michelangelo's original drawings.
What's actually inside, beyond the scale
The Pietà sits behind glass immediately to the right of the entrance, installed after a 1972 attack left the sculpture damaged — Michelangelo carved it before he was twenty-five, and it's the only work he ever signed, on the sash across Mary's chest. Bernini's bronze baldachin over the papal altar rises nearly 30 metres and was cast partly from bronze stripped from the portico of the Pantheon, a piece of recycling that annoyed Romans enough to produce a still-quoted saying about what the barbarians didn't do to Rome, the Barberini pope did.
Beneath the basilica, the Vatican Grottoes hold the tombs of dozens of popes, including, deeper still and accessible only by a separate, limited-capacity tour, the excavated necropolis where tradition places St Peter's actual grave.
Basilica di San Pietro: common questions
01Is St Peter's Basilica free to enter?
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Yes, there's no admission ticket for the basilica itself. The dome climb and the excavations beneath the basilica (the Scavi) are separate paid, bookable experiences.
02What is the dress code for St Peter's Basilica?
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Shoulders and knees covered, for every visitor regardless of gender or weather. It's enforced at the security checkpoint, and there's no way around it on the day — bring a scarf or layer if there's any doubt.
03How many steps to the top of St Peter's dome?
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551 steps total. A lift covers part of the climb for an extra fee, but the final stretch up the dome's curve is on foot either way, through some low, narrow passages.
04How do I avoid the queue at St Peter's Basilica?
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Arrive early, before the security line builds in the piazza. Avoid Wednesday mornings if possible, when the papal general audience draws large crowds to the square itself.