The Uffizi Gallery is an art museum in Florence, and is one of the oldest and most famous art museums in the world. The building of Uffizi was begun by Giorgio Vasari in 1560 for Cosimo I de' Medici so as to accommodate the offices of the Florentine magistrates, hence the name uffizi, "offices". The construction was later continued by Alfonso Parigi andBernardo Buontalenti and completed in 1581. The cortile (internal courtyard) is so long and narrow, and open to theArno at its far end through a Doric screen that articulates the space without blocking it, that architectural historians treat it as the first regularized streetscape of Europe.