Pantheon Fast-Track Ticket and Guided Tour of the Rotunda

Michelangelo is said to have called the Pantheon the work of angels rather than of men, and five centuries later the room he was describing has not changed. That is the unusual part. Everything else from imperial Rome is a ruin or a reconstruction; this one was never abandoned long enough to fall down. The reason is a change of ownership. In 609 the emperor in Constantinople handed the building to Pope Boniface IV, who consecrated it as a church. A pagan temple with a congregation gets its roof kept on. That did not save everything: in the 1620s Urban VIII had the bronze stripped from the portico ceiling and melted down, which produced the Roman line about what the barbarians had not done, the Barberini did. Fast-track entry takes care of the queue and a guide takes care of the rest. Be clear about what fast-track means here, because the phrase is the industry's and not the monument's. There is no priority lane at the Pantheon, whatever a listing calls it, and the ministry that runs the site has said so. What the ticket buys is admission inside a booked time band. Names go on the tickets and are matched against a passport or an identity card on the way in, so carry documents for the whole party and turn up for the slot rather than ahead of it. The tour works through the history that happened inside this building rather than around it, and there is enough of that to fill the time: a temple, a church, a royal burial place, all in the same room without a single rebuild of the shell. Before you go in, the guide has the portico to work with. Sixteen granite columns, eight of them across the front, each shaft cut from a single block about 11.7 metres tall and weighing in the region of fifty tonnes, quarried in the eastern desert of Egypt and moved by sledge, barge and ship. The bronze letters over them credit Marcus Agrippa, consul for the third time. They belong to a building that burned down. The one standing is Hadrian's, and it took the stamps on the bricks to prove it, which is why the inscription misled scholars for centuries. The dome is the largest unreinforced dome anywhere, and the numbers explain why nobody repeated it. Concrete 5.90 metres thick at the base thins to 1.50 at the rim of the oculus, and the aggregate changes as it rises, heavy stone low down and light pumice at the top. The Romans worked that out by building it. Then the oculus, which has no glass, has never had glass, and lets in the weather along with the light. Forty-five minutes covers the visit because there is nowhere else to go. The Pantheon is one room. No upper level, no dome climb, no crypt to bolt on, which is why a guided visit here is short by the standards of Rome and why the guide is most of what you are buying. The collection point is not the monument but a shop at Via dei Bergamaschi 49, a couple of minutes from the portico, so allow for that leg. Gratuities are not in the price. And the building is a church in use: a service on the day outranks any tour booking.