On the Piazza della Bocca della Verità, at a short distance from the temple we have just been considering, stand the remains of a small round temple commonly called the Temple of Vesta. Perhaps of all the ruins of Rome this is the most familiar to the eye of the tourist. A considerable part of the cella is still standing, ornamented with a simple and elegant cornice. Round this stand nineteen graceful Corinthian columns of white marble. The entablature is unfortunately destroyed, and the rude modern tiled roof with which the building has been capped completely spoils the picturesque effect of the ruin. [Illustration: Palatine Hill. Æmilian Temple of Hercules, and mouth of Cloaca Maxima. Bell tower of S. Maria in Cosmedin.] The name now given to it rests on no other evidence than its circular shape, and as we have no mention of a Temple of Vesta in the Forum Boarium it must be at once condemned as a misnomer. It has also been called the Temple of the Sibyl or the Temple of Cybele without better reason. The most probable conjecture as to its name is that first suggested by Piale, that it is the round Temple of Hercules in the Forum Boarium mentioned in the tenth Book of Livy, and alluded to by Festus as the Æmilian Temple of Hercules. The appellation Æmiliana certainly seems to point to the neighbourhood of the Æmilian bridge. The style of its architecture may be attributed to a restoration in the latter half of the first century A.D. Formerly, it was called the Church of Madonna del Sole, from a favourite image of the Virgin in it, and at an earlier period S. Stefano delle Carozze, from the discovery of a marble model of a chariot in its neighbourhood, but in 1810 it was cleared out and restored, and since then it has not been used as a church, but contains a small collection of marble fragments. [Sidenote: Temple of Ceres.]