Signor Pio Piacentini designed the edifice; and the works have been carried out with the assistance of the architect Augusto Fallani, at a cost of two and a half million lire. On the façade of the entrance is the inscription:-- ESPOSIZIONE DI BELLE ARTI NEL' ANNO MDCCCLXXXII QUINTO DEL REGNO DI UMBERTO I. IL COMUNE DI ROMA EDIFICIO CONTRIBUENDO STATO E PROVINCIA. _From Santa Maria degli Angeli we turn to the right. At the corner of the Piazza S. Bernardo is the_ NEW MUSEUM OF AGRICULTURE. _Open free to the public, Tuesday, Thursday, and Sunday, from 10 to 3. Opposite is_ THE FELICE FOUNTAIN. The Acqua Felice aqueduct was made, A.D. 1587, by Sixtus V. (Felice Peretti), from whom it took its name. The fountain was designed by Bresciano. _In the centre_ of the group is seen Moses striking the rock, and the water issuing forth; _on the left_, Aaron leading the Jews; and _on the right_, Gideon bringing them to the brink of the stream. Four lions guard the basins below. It is said that the work of the artist was so criticised that he put an end to his life. _Turning down the Via Venti Settembre, on our right_ is the NEW MINISTRY OF FINANCE, in erecting which remains of the Porta Collina in the Servian walls were found. Also remains of THE FLAVIAN TEMPLE, erected by Domitian on the site of his parents' house near the PORTA COLLINA. A marble head of Titus was found in the excavations. "Whatever Domitian's unconquered hand has erected is imperishable as heaven" (Martial, ix. 1). "What of the Flavian Temple which towers to the Roman sky?" (_Ibid._, ix. 3). The following is amusing:-- "TO CÆSAR, ON THE TEMPLE OF THE FLAVIAN FAMILY.--Jupiter, when he saw the Flavian temple rising under the sky of Rome, laughed at the fabulous tomb erected to himself on Mount Ida; and, having drunk abundantly of nectar at table, exclaimed, as he was handing the cup to his son Mars, and addressing himself at the same time to Apollo and Diana, with whom were seated Hercules and the pious Arcos: 'You gave me a monument in Crete; see how much better a thing it is to be a father of Cæsar!'" (Martial, ix. 34). THE UNFAITHFUL VESTAL'S TOMB. Livy (xxii. 57) tells us that this was "near the Colline Gate." We learn from Pliny's "Letters" (iv. 11) that it was "a subterranean cavern." Plutarch, in "Numa," gives the following interesting details:--