From a distance it looks like an upturned basket forgotten in the middle of the court. Come closer: it is all of stone, and the weave of the wicker — the rushes, the reeds, the knots that hold them together — is rendered with a realism that deceives the eye. It is the vera da pozzo (the wellhead) of Corte Gregolina, probably from the late 15th century: a piece that resembles no other.