Another tomb is that of Bibulus, who was also a tribune. It is still extant and to be found at the foot of the Capitoline Bridge. The tomb of Cecilia Metella is a very beautiful and well preserved monument of circular form, standing on the Appian Way near the Circus of Caracalla; she was a daughter of the Q. C. Metellus who conquered Crete, and was probably wife to Crassus who fell in the Parthian war. The most notable of all was the mausoleum of Augustus, once a magnificent structure, a small portion of which still remains, much built in, and hidden away in the Via Rippeta. It was originally of circular form crowned with a dome and surmounted with a statue of Augustus. Strabo records that “it was particularly worth noticing, built upon immense foundations of white marble and covered with evergreens.” It is probable that the Emperor Hadrian desired to imitate and rival Augustus in the erection of the mausoleum to himself. He was inspired also, it is believed, by his admiration of the magnificent monument erected by Artemisia to her brother and husband Mausolus, who originated the word mausoleum, and was king of Caria 377 B.C. This splendid tomb erected at Halicarnassus was the outcome of her inconsolable grief and ardent affection, which was further displayed by her drinking his ashes dissolved in fluid. This famous monument was counted one of the seven wonders of the world. The statue of Mausolus may be seen to-day among the art treasures preserved in the British Museum. Hadrian’s work was undertaken A.D. 135 but he did not live to complete it, and it was finished by his successor, Antoninus Pius. The first detailed description of the mausoleum is to be found in the history of the Gothic wars written by Procopius in the sixth century. “Beyond the Aurelian Gate,” he says, “a stone’s throw from the walls is the tomb of Hadrian, a wonderful and remarkable work, built of large blocks of Parian marble, superposed and closely fitted together without cement or clamps to bind them. The four sides are equal, each about a stone’s throw in length, and the height is greater than the walls of the city. On the summit are admirable statues of men and horses of the same material, and as this tomb formed a defence to the city thrown out beyond the walls, it was joined to them by the ancients (the Roman emperors) by two arms built out to it, so that it seemed to rise out of them like a lofty turret.”