All the treasures found in this tomb are in the oldest style of Etruscan art, and are so similar to the bronzes and ornaments brought by Layard from Assyria as to lead to the belief that they had a common origin. The tomb, with its contents, probably dates from the 9th or 10th century before the Christian era. The largest tomb hitherto discovered in Etruria is now known as the Cocumella, in the necropolis at Vulci. It is rather more than 240 ft. in diameter, and originally could not have been less than 115 or 120 ft. in height, though now it only rises to 50 ft. [Illustration: 173. View of principal Chamber in the Regulini Galeassi Tomb.] Near its centre are the remains of two solid towers, one circular, the other square, neither of them actually central, nor are they placed in such a way that we can understand how they can have formed a part of any symmetrical design. A plan and a view of the present appearance of this monument are given in Woodcuts 174 and 175. [Illustration: 174. Plan of Cocumella, Vulci. Scale 100 ft. to 1 in.] [Illustration: 175. View of Cocumella, Vulci.] This tumulus, with its principal remaining features thus standing on one side of the centre, may possibly assist us to understand the curious description found in Pliny[163] of the tomb of Porsenna. This description is quoted from Varro, being evidently regarded by Pliny himself as not a little apocryphal. According to this account it consisted of a square basement 300 ft. each way, from which arose five pyramids, united at the summit by a bronze circle or cupola. This was again surmounted by four other pyramids, the summits of which were again united at a height of 300 ft. from the ground. From this point rose still five more pyramids, whose height Varro (from modesty, as Pliny surmises) omits to state, but which was estimated in Etruscan traditions at the same height as the rest of the monument. This last statement, which does not rest on any real authority, may well be regarded as exaggerated; but if we take the total height as about 400 ft., it is easy to understand that in the age of Pliny, when all the buildings were low, such a structure, as high as the steeple at Salisbury, would appear fabulous; but the vast piles that have been erected by tomb-building races in other parts of the earth render it by no means improbable that Varro was justified in what he asserted.[164] Near the gate of Albano is found a small tomb of five pyramidal pillars rising from a square base, exactly corresponding with Varro’s description of the lower part of the tomb of Porsenna. It is called by tradition the tomb of Aruns, the son of Porsenna, though the character of the mouldings with which it is adorned would lead us to assign to it a more modern date. It consists of a lofty podium, on which are placed five pyramids, a large one in the centre and four smaller ones at the angles. Its present appearance is shown in the annexed woodcut (No. 176).