Mitreo di Felicissimus
The Mithraeum Felicissimus has a floor mosaic depicting the seven mithraic grades.
Felicissimvs / ex voto f[ecit]
Mitreo delle Sette Porte
The name of the Mithraeum of the Seven Gates refers to the seven gates illustrated in the mosaic that decorates the floor of the temple, symbolising the seven planetary spheres through which the souls of the initiates passed.