The oculus
A nine-metre opening to the sky, unglazed for two thousand years — the only light source, and proof the Romans built for eternity.
NikonZ7II — CC BY-SA 4.0 · Wilfredor — CC0 · Livioandronico2013 — CC BY-SA 4.0 · Dietmar Rabich — CC BY-SA 4.0
The most complete Roman building we have, and the world's largest unreinforced concrete dome still standing: the Pantheon. Built by Hadrian around AD 126 over an earlier temple, it has been in continuous use for nineteen centuries — which is precisely why it survived: converted to a church in 609, it escaped the quarrying that consumed Rome's other temples. The interior does what no photograph manages: a dome 43 metres across and exactly 43 metres high — complete the sphere and it would touch the floor — crowned by the oculus, a nine-metre opening onto open sky. There is no glass: rain really does fall inside, and the marble floor is subtly canted with drains designed for it two thousand years ago. A shaft of sunlight tracks across the walls all day like a giant clock. Raphael is buried here, as are Italy's first two kings. Entry has carried a small fee since 2023 after centuries of being free, and booking online saves the queue in season — it remains among the cheapest and most profound things you will see in Rome.
A nine-metre opening to the sky, unglazed for two thousand years — the only light source, and proof the Romans built for eternity.
The Renaissance master lies here by his own wish, under a Latin couplet saying Nature feared he would outdo her while he lived.
The concrete lightens as it rises (volcanic pumice at the top) and coffers cut the weight — an engineering lesson two millennia ahead of its time.
Cafés and an obelisk fountain face the portico — sit afterwards and study the granite columns, quarried in Egypt.
Piazza della Rotonda, Rome
The Fountain of the PantheonA fountain in the middle of the square before the Pantheon, designed in 1575 and1 minute walk4.6
Sant'Ignazio ChurchRome's greatest optical trick, and free: Sant'Ignazio ran out of money for its d3 minutes walk4.7
Fontana del MoroThree fountains punctuate Piazza Navona, and the most famous stands at its centr4 minutes walk4.9
Piazza NavonaThe square's shape tells its story: a long rectangle with two curved ends, becau4 minutes walk4.8
Palazzo BraschiA late eighteenth-century palace on the edge of Piazza Navona, built by Pope Piu5 minutes walk4.4Looking for halal food near Pantheon? There are several options nearby, from Moroccan and Indian kitchens to quick casual spots and places with a view. Confirm the halal status and opening hours before you go — these can change.
Yes, since 2023, a nominal fee after centuries of free access, with under-18s exempt. Booking ahead is optional but saves the queue in season.
Rain really does fall through the oculus, becoming a column of water in the middle of the hall — and the floor's original Roman drains swallow it. A rare sight worth deliberately visiting on a wet day.
Half an hour inside is enough; add another for the square and its cafés — it's the ideal opening or closing stop on any central Rome walk.
