Of Rome in the meantime, so a lot as was still left unoccupied by his mansion, was not built up, as it had been following its burning by the Gauls, without the need of any regularity or in any style, but with rows of streets according to measurement, with wide thoroughfares, with a restriction on the peak of houses, with open areas, and the additional addition of colonnades, as a security to the frontage of the blocks of tenements.