The work, however, was not complete so long as the ground, protected by so laborious exertions from outward foes, was not also reclaimed from the dominion of the water, which permanently occupied the valley between the Palatine and the Capitol, so that there was perhaps even a ferry there, and which converted the valleys between the Capitol and the Velia and between the Palatine and the Aventine into marshes. The subterranean drains still existing at the present day, composed of magnificent square blocks, which excited the astonishment of posterity as a marvellous work of regal Rome, must rather be reckoned to belong to the following epoch, for travertine is the material employed and we have many accounts of new structures of the kind in the times of the republic; but the scheme itself belongs beyond doubt to the regal period, although presumably to a later epoch than the designing of the Servian wall and the Capitoline stronghold. The spots thus drained or dried supplied large open spaces such as were needed by the new enlarged city. The assembling-place of the community, which had hitherto been the Area Capitolina at the stronghold itself, was now transferred to the flat space, where the ground fell from the stronghold towards the city (-comitium-), and which stretched thence between the Palatine and the Carinae, in the direction of the Velia. At that side of the -comitium- which adjoined the stronghold, and upon the stronghold-wall which arose above the -comitium- in the fashion of a balcony, the members of the senate and the guests of the city had the place of honour assigned to them on occasion of festivals and assemblies of the people; and at the place of assembly itself was erected the senate-house, which afterwards bore the name of the Curia Hostilia. The platform for the judgment-seat (-tribunal-), and the stage whence the burgesses were addressed (the later rostra), were likewise erected on the -comitium- itself. Its prolongation in the direction of the Velia became the new market (-forum Romanum-). At the end of the latter, beneath the Palatine, rose the community-house, which included the official dwelling of the king (-regia-) and the common hearth of the city, the rotunda forming the temple of Vesta; at no great distance, on the south side of the Forum, there was erected a second round building connected with the former, the store-room of the community or temple of the Penates, which still stands at the present day as the porch of the church Santi Cosma e Damiano. It is a feature significant of the new city now united in a way very different from the settlement of the "seven mounts," that, over and above the hearths of the thirty curies which the Palatine Rome had been content with associating in one building, the Servian Rome presented this general and single hearth for the city at large.(15) Along the two longer sides of the Forum butchers' shops and other traders' stalls were arranged. In the