Pantheon: Rome Travel Guide (4.8★)

Nothing else standing from ancient Rome does what this building does: it still has its original roof. The dome, poured in unreinforced concrete around 118-125 AD under Hadrian, remains the world’s largest unreinforced concrete dome. At its centre is the oculus, a nine-metre circular opening that is the only source of light and, when it rains, the only source of water hitting the marble floor below.

The dome and the oculus

Stand under the oculus and look straight up. The coffered ceiling steps inward in five diminishing rings, an optical trick that makes the 43-metre span feel higher than it is. The dome’s diameter equals its height from the floor, a perfect sphere would fit inside exactly. Sixteen granite columns, each a single piece shipped from Egypt, hold up the portico out front. Come midday on a clear day and the light beam through the oculus swings across the floor like a slow sundial.

Raphael’s tomb and the Renaissance layer

The building was consecrated as a church in 609 AD, which is the only reason it survived intact while other Roman monuments were stripped for stone. That conversion added side chapels and tombs. Raphael is buried here, in a niche he chose himself, marked by a modest inscription rather than a grand monument. Italy’s first two kings, Vittorio Emanuele II and Umberto I, are also entombed inside, flanking the altar area.

Getting there and timing it right

The Pantheon sits on Piazza della Rotonda in Rome’s centro storico, a 10-minute walk from both the Trevi Fountain and Piazza Navona. Nearest transit is bus routes to Largo di Torre Argentina, about 400 metres south; there’s no metro station within easy walking distance. It’s open daily, 9am to 7pm, with entry free as of recent years, though a small fee has been introduced in the past for the interior, so check the current policy before going.

Because this is one of the most-reviewed landmarks in Italy, expect a line at any hour between late morning and mid-afternoon. Weekday mornings right at opening, or the last hour before 7pm closing, are your best windows.

Reading the piazza before you go in

Piazza della Rotonda itself rewards a slow lap. The obelisk-topped fountain in front, the Fontana del Pantheon, dates to the 1570s with an Egyptian obelisk added later. Cafés ring the square; treat them as pricier tourist spots rather than where locals actually eat, and walk a few streets back toward Piazza Sant’Eustachio for coffee at local rates instead. Inside, this remains an active church, so no loud talk, no eating, and shoulders and knees should be covered as at any Roman basilica.

Photography is allowed without flash. Mass is held on Saturday evenings and Sunday mornings, when tourist visits pause; check posted times if you want to avoid or attend one.