Among the many impressive rooms you’ll visit, there are a few which are particularly important. Il Salone dei Cinquecento, or the Room of the Five Hundred, which was the room where the Great Council of the Florentine Republic met. It was modeled on the room used by Venice’s Upper Council. When Cosimo I de’ Medici moved into the palazzo, he used the room for public ceremonies and ordered its redecoration, during which many important and famous works were lost, including paintings by Michelangelo and Leonardo da Vinci. Supposedly, Da Vinci’s work was hidden behind a false wall but attempts to find it have been unsuccessful so far. Today visitors can see frescoes that celebrate Florentine victories over nearby Pisa and Siena. The second floor contains the Apartments of the Elements (Sala degli Elementi), a sequence of five rooms which were the private apartment of Cosimo I. Each room has a different theme, based on either mythology or nature. You’ll also see the rooms belonging to Cosimo I’s wife, Eleonora of Toledo, which were also luxuriously decorated with friezes, tapestries, and painted ceilings. The final room which you can’t miss is the Hall of Geographical Maps, which attempts to document the whole world that was known in the 16th century. It was designed to hold some of the most unusual of the Medici treasures, and today contains unique cabinets created by Dionigi di Matteo Nigetti, each of which had doors that featured paintings of maps. There is also a huge globe from the 16th century which shows the Earth, the matching celestial globe was never completed. The Vasari Passage, which connects the Palazzo Vecchio to the Uffizi Gallery, has been closed for safety reasons since 2016, though plans are in place to refurbish it and open it to the public again in 2021.