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The Pantheon is the reason most people come to Piazza della Rotonda. But the fountain standing directly in front of it — Fontana del Pantheon — is a layered object in its own right: a 16th-century basin, an obelisk carved for an Egyptian pharaoh around 1250 BC, and a Baroque redesign completed in 1711, all stacked on top of each other in the middle of one of Rome’s busiest squares.
History
The Original Fountain
Pope Gregory XIII commissioned the fountain in 1575 as part of a broader urban renewal program — the same initiative that produced the Fountain of the Moor in Piazza Navona.
Giacomo della Porta designed it, and Leonardo Sormani carved the original marble basin. At that stage, the fountain had no obelisk — just a simple basin with masks, fed by the restored Aqua Virgo aqueduct. It served primarily as a public water source.
The 1711 Redesign and the Obelisk
The fountain’s current appearance dates to 1711, when Pope Clement XI commissioned architect Filippo Barigioni to overhaul it. Barigioni added a larger stone basin, four dolphins at the base, papal coats of arms, and — most dramatically — the Macuteo Obelisk rising from the center.
The obelisk’s own history runs far deeper than the fountain beneath it. It was carved during the reign of Pharaoh Ramesses II (19th Dynasty), between 1279 and 1213 BC, and originally erected at the Temple of Ra in Heliopolis. The two cartouches of Ramesses II are still visible near the tip.
It was brought to Rome in ancient times and reused in the Iseum Campense — a sanctuary of the Egyptian goddess Isis that stood to the southeast of the Pantheon. When that sanctuary fell into ruin, the obelisk disappeared under rubble for centuries. It was rediscovered in 1374 underneath the apse of the nearby Basilica of Santa Maria sopra Minerva. For a time it stood propped up on simple stone blocks outside the small church of San Macuto nearby — hence the name Macuteo — before Clement XI moved it to its current position.
The obelisk stands 6.34 meters tall on its own; with the fountain base, it reaches just over 14 meters. It is topped by a dove — the symbol of the Holy Spirit — a standard Baroque gesture of placing Christian iconography atop pagan monuments to signal the Church’s dominion over antiquity.
Reading the Fountain: What the Details Mean
Most visitors photograph the fountain without reading what’s written on it.
The stone plinth directly below the obelisk carries a Latin inscription: Clemens XI Pont. Max. Fontis et Fori Ornamento Anno Sal. MDCCXI — “Clement XI, Supreme Pontiff, for the adornment of the fountain and the square, in the year of salvation 1711.” It’s a pope claiming credit in stone, the standard practice of the era.
On each face of the plinth sits the papal coat of arms of Clement XI: a star above an open book, the heraldic device of the Albani family — Clement’s family name. It appears on all four sides, making the fountain as much a monument to papal patronage as to water infrastructure.
Further down the base you’ll find another inscription: SPQR Restaurata 1880. This marks a city-funded restoration by the municipal government of Rome, 15 years after Italian unification.
The abbreviation SPQR — Senatus Populusque Romanus, the Senate and People of Rome — was deliberately revived by the new Italian state as a symbol of civic continuity with antiquity. It still appears on Rome’s manhole covers today. During this 1880 restoration, Sormani’s original marble masks from 1575 were removed due to deterioration and replaced with copies by sculptor Luigi Amici. The originals are now in the Museum of Rome.
The Dolphins — and Why They Look Nothing Like Real Dolphins
The four creatures supporting the obelisk’s plinth are technically dolphins, but they bear little resemblance to the animals. They have gaping jaws, protruding eyes, scaled bodies, and the general demeanor of something considerably more alarming.
This is not incompetence — it’s deliberate. Renaissance and Baroque artists consciously modeled their dolphins on classical antiquity rather than from life, treating the ancient depiction as the authoritative version regardless of anatomical accuracy. Della Porta used the same stylized creatures on the Fountain of the Moor; they became the house style for papal fountains across Rome.
The dolphins you see today are not even Barigioni’s originals from 1711. In 1928, the deteriorated Baroque dolphins were replaced with copies by sculptor Francesco Sicciardi. The 1711 originals went to the Museum of Rome — meaning the fountain is now a palimpsest of copies layered over copies.
The symbolism behind the choice of dolphins matters. In Greco-Roman mythology, dolphins were companions of Neptune, guardians of sailors, and rescuers of the shipwrecked. Their presence on a fountain connected to Rome’s water infrastructure carries a direct message: the city’s water supply is under divine protection. That symbolism translated smoothly into Christian iconography, where the dolphin became associated with Christ the savior. Place a dolphin beneath a papal obelisk topped with a dove, and you have a complete theological statement compressed into stone and water.
The masks between the dolphins — human faces with open mouths discharging water — follow the same classical tradition used across Rome’s public fountains: the disembodied face as water-spouting device, theatrical and impersonal at the same time. They are copies of della Porta’s 1575 originals, which means the oldest element visible on the fountain today dates not to the Renaissance, but to 1880.
The Companion Obelisk — A Detail Most Visitors Miss
The Macuteo Obelisk was not alone. Its twin — the Minerva Obelisk — originally stood alongside it in Heliopolis and was brought to Rome at the same time.
You can see it today roughly 200 meters behind the Pantheon, in the small Piazza della Minerva, balanced on the back of Bernini’s famous marble elephant. Most tourists never make the detour. It takes four minutes to walk there and back, and the contrast between the two obelisks — one on a Baroque fountain in a crowded piazza, the other on a whimsical elephant in a quiet square — is worth the effort.
What You’re Looking At
The fountain occupies the center of Piazza della Rotonda, the rectangular square directly in front of the Pantheon.
The basin is stone, not marble — a result of the 1711 redesign replacing della Porta’s original marble. Four dolphins support the central plinth from which the obelisk rises. The masks on the basin’s edge discharge water and are the clearest visual link back to the 1575 original; they follow the same decorative vocabulary della Porta used at the Fountain of the Moor and the Fountain of the Four Rivers in Piazza Navona.
The best time to see the fountain is before 9 AM — the piazza is quiet, the light hits the obelisk at a low angle from the east, and you can get close enough to read the Latin inscription on the plinth without fighting through a crowd. By mid-morning the square fills fast: the cafés put out chairs, the tour groups arrive, and the fountain becomes a backdrop rather than something to look at.
Worth noting: the water flowing through it today is still fed by the same Aqua Virgo aqueduct Agrippa built in 19 BC — the same source, the same route, more than two thousand years later.
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