"Medici Chapels Located behind the church of San Lorenzo, this is where many members of the ruling Medici family are buried. The octagonal building with an opulent marble interior dates from 1519. The Cappella dei Principi houses sarcophagi belonging to the Medici grand dukes, including Cosimo I. Lorenzo the Magnificent is buried in the adjoining Sagrestia Nuova, which contains Michelangelo’s famous Night and Day and Dawn and Dusk sculptures."