Corridoio Vasariano, a secret passageway built in 1565 for the Medici family in Florence, has opened to the public for the first time. Connecting Palazzo Vecchio, Uffizi Galleries, and Palazzo Pitti, the 2,460-foot corridor was designed by Giorgio Vasari. After an eight-year renovation, it is now accessible following its extensive restoration, costing $11.5 million.