 The museum contains a wide selection of his works, as well as preparatory papers and sculptures of other large pieces, including several which are housed at St Peter's Basilica in the Vatican.Opposite the cathedral is a large grand building constructed in 1359 to house the cathedral's administrative offices and enlarged in 1857 to create a museum on the ground floor housing Etruscan artifacts discovered around the city, which was once a major Etruscan capital.Next door to this building is the "Claudio Faina" museum, which houses the substantial collection of Etruscan art collected in the nineteenth century by Count Mauro Faina and bequeathed to the city.