Mr V. Zoffoli, enlarging his wine-cellars near the railway-station in 1963, discovered a grotto dedicated to the mighty and secret god. The plan of the Mithraeum is the usual one. Behind a wide entrance hall (L. 13.25 m, W. 8.00 m) we find the sanctuary itself, which is exceptionally long and much narrower (W. 3.10 m) than the ante-room. The longest Mithraeum of the Roman Imperium known hitherto was that at Sarmizegetusa is in Dacia (L. 26 m), the one at Marino however is 29.20 metres long, which is twice the normal length. The arrangement of benches on either side with a nave in between is
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