LANDMARKS LIVE IN CONCERT: A GREAT PERFORMANCES SPECIAL:  Hear the international superstar, special guests and conductor Zubin Mehta in a once-in-a-lifetime concert at the Palazzo Vecchio in Florence, Italy. Join host Chad Smith and Bocelli for tours of the tenor’s Tuscan villa and the city of Florence.  Saturday, July 28, 2018, 10:00-11:00 p.m.