After the first excavations began in the summer of 1978, the Temples of Humankind remained a secret for sixteen years. Only the Damanhurian artists, craftspeople and masons directly involved in the construction knew about it. Even though the Temples were on Damanhurian property, they were unauthorized because in the Piedmont region of Italy, there were neither laws that regulated underground construction nor authorities for the asking of permission.
The Labyrinth is composed of five long naves with Gothic arches, connected by perpendicular corridors.
The art works in the two naves further to the left from the entrance have been recently completed: they are splendidly painted and enriched with sculptures and mosaics. The walls of the three older naves, on the contrary, are undergoing a first phase of restorations.