The different levels of the grade planes suggest that the tombs placed at the sides of the tomb road were built in different eras, between the early 1st and the 2nd centuries AD. Facing the southern side are Tomb 23, characterized by the presence of a sort of unique peristyle, and Tomb 29, with a fine brick façade punctuated by half-pilastres. To the north, Tombs 30 and 31 may be distinguished, both characterized by an unroofed area and by a vaulted funerary chamber with triclinium; originating perhaps from one or the other of these are the frescoes depicting the vessel Isis Geminiana and a banquet scene, conserved at the Vatican Museums.