Porta Alchemica (The Alchemical Door)

[Paul Ferguson]

The Alchemical Door, also known as the Alchemy Gate or Magic Portal (Italian: Porta Alchemica or Porta Magica), is a monument built between 1678 and 1680 by Massimiliano Palombara, marquis of Pietraforte, in his residence, the villa Palombara, which was located on the Esquiline Hill, near Piazza Vittorio, in Rome.

https://en.wikipedia.org/wiki/Porta_Alchemica

https://audiala.com/en/italy/rome/porta-alchemica

https://www.indaginiemisteri.it/en/myste...palombara/