From Wiki:

The Fontana dell’Acqua Felice, also called the Fountain of Moses,^[1] is a monumental fountain located in the Quirinale District of Rome, Italy. It marked the terminus of the Acqua Felice aqueduct restored by Pope Sixtus V. It was designed by Domenico Fontana and built in 1585–1588.^[2] It is located at the intersection of Largo Santa Susanna and Via Venti Settembre; across and diagonal from the Largo, is the church of Santa Susanna, while across Via Venti Settembre is the church of Santa Maria della Vittoria.

The statue of Moses was criticized at the time for its large size, not in proportion with the other statuary, but the fountain achieved its political purpose; it was a statement of how the Catholic Church, unlike the Protestant Reformation, was serving the needs of the people of Rome. It also achieved its social purpose of reviving the Quirinal neighborhood; what had been a rustic area of villas was turned into a thriving urban neighborhood by the arrival of a good drinking water supply.^[11]

Limestone statues from St. Mary’s Abbey, York; Moses, Unknow Apostle, St. James and St. John the Evangelist.

These larger than life statues were placed above the west entrance to the abbey church at St. Mary’s to awe and inspire visitors. Beautifully crafted and painted they are the finest surviving example of eleventh century sculpture in the country. The statues were discovered by Reverend Charles Wellbeloved in 1827. They had been unceremoniously laid face down in the ground as foundations stones when the church was later rebuilt.*

*From and information board next to the statues