Rome's Alchemical Door (Porta Magica): history, symbols and how to find it

Updated on October 5, 2026

The Alchemical Door, or Porta Magica, is a small stone doorway standing in the garden of Piazza Vittorio Emanuele II, in the Esquilino district, a ten-minute walk from Termini station. Built between 1678 and 1680 by the Marquis Massimiliano Palombara, an alchemist and Roman senator, it is the last surviving piece of his villa, which was demolished at the end of the 19th century when the square was laid out. Covered with planetary symbols and phrases in Latin and Hebrew, and flanked by two statues of the Egyptian god Bes, it is the strangest curiosity in Rome. Visiting is free and takes only a few minutes; it combines well with the nearby Esquilino market.

Highlights

The door and its two statues

The marble-framed doorway is walled up: it was the entrance to the marquis's laboratory in his villa, and the only one of the estate's five doors to survive. Above the lintel, a medallion shows the two interlaced triangles that stand for the union of opposites in the Hermetic tradition.

The statues of Bes

On each side stands a small grotesque figure of the Egyptian god Bes, protector of the home and of fertility, widely worshipped in Rome under the Empire. The statues are not original: found near the Quirinal, where a temple of Isis and Serapis once stood, they were set up here during the works of 1888.

The inscriptions

On the threshold and the jambs, phrases in Latin and Hebrew, including "Divine Spirit", "Three are the marvellous things: God and man, the mother and the virgin, the one and the triune" and the formula about the dragon of the Hesperides guarding the entrance to the magic garden. You can also make out seven symbols of planets and metals, such as Saturn for lead or Mars for iron. The mirror formula "si sedes non is, si non sedes is" ("if you sit, you do not go; if you do not sit, you go") is one of the most quoted riddles.

The legend of Borri

According to tradition, a pilgrim alchemist, sometimes identified with the Milanese physician Giuseppe Francesco Borri, stayed at the villa, left a few flakes of gold and vanished through the door, leaving a formula for transmutation. Palombara then engraved its symbols on the villa's doors in the hope that a reader would grasp their meaning. No one ever has.

Practical info

Tips

There is no ticket and no opening time specific to the monument: you see it from the public garden of the square, preferably during the day. The doorway is sealed and protected by a small barrier: you look, you do not walk through. The inscriptions are small and worn; bring a camera with a good zoom or read a translation beforehand. The garden is a place where local residents stroll, fairly quiet during the day; as everywhere around Termini, keep your belongings close (see our guide to scams to avoid in Rome).

How to get there

Piazza Vittorio Emanuele II, 00185 Rome, in the central garden of the square. Metro line A, Vittorio Emanuele station (the square is a few steps from the exit); on foot, allow about twelve minutes from Termini station. Several bus and tram lines serve the square.