South of the Kasr there is another mound, rising about one hundred feet above the plain and very irregular in shape. This is _Tel-Amran-ibn-Ali_, or _Tell-Amran_, (Fig. 183, vol. i.). It is agreed that this contains all that remains of the hanging gardens, a conjecture that is confirmed by the numerous tombs dating from the Seleucid, the Parthian, and the Sassanid periods, which have been found in its flanks whenever any excavation has been attempted.[38] Tell-Amram seems to have been a far more popular depository for corpses than either Babil, the Kasr, or the Birs-Nimroud, a preference which is easily explained. Whether we believe, with Diodorus, that the gardens were supported by great stone architraves, or with Strabo, that they stood upon several stories of vaults, we may understand that in either case their substructure offered long galleries which, when the gardens were no longer kept up and the whole building was abandoned to itself, were readily turned into burial places.[39] The palace and temple mounds did not offer the same facilities. They were solid, and graves would have had to be cut in them before a corpse could be buried in their substance. The Kasr was a ready-made catacomb into which any number of coffins could be thrust with the smallest expenditure of trouble. Excavations in the Kasr and at Tell-Amran might bring many precious objects to light, but we can hardly think that any room or other part of a building in such good preservation as many of those in the Assyrian palaces would be recovered. To the latter, then, we shall have again to turn to complete our study of the civil architecture of Mesopotamia.