In point of architectural style the Romans of this date--who in artistic matters were but imitators of the Greeks and far less certain in taste than their masters--affected the Corinthian, as being the most florid. Even this they could not leave in its native purity, but for the most part converted it into Graeco-Roman or composite varieties. A prime fault of the Roman taste was then, as it has always been, a love of gorgeousness, of excessive and obtrusive ornament. In almost any Roman church of to-day we find the walls and pillars stuck about with figures, slabs, and so-called decorations to such an extent that the finer lines and proportions are often ruined, The ancient Roman likewise was commonly under the impression that the more decoration you added, the more magnificent was the building. There were doubtless many buildings in simpler and purer taste, probably executed by Greek artists under the authority of some Roman who happened to possess a finer judgment or less self-assertiveness. Nevertheless the fault of over-elaboration is distinctly Roman. [Illustration: FIG. 21.--SO-CALLED TEMPLE OF THE SIBYL AT TIVOLI.] We must not omit to say that, besides temples of this typical rectangular form, there were others of a round shape, encircled by columns, like that graceful structure at Tivoli commonly, though mistakenly, known as the temple of the Sibyl, and that small building which still exists in an impoverished condition near the Tiber, and which used to bear the erroneous title of the temple of Vesta. Others again were simply round and domed, like the true temple of Vesta in the Forum, or the superb and impressive Pantheon in the Campus Martius. So far as the bare round was broken in these cases, it was either by a pillared portico, as with the Pantheon, or by engaged columns and ornament, as with the true temple of Vesta.