In all countries the most famous museum have one closing day.
In Germany it s Monday. In Italy Florance. Firenze it s the same:
Monday the important museums in Florence are closed
here are a list of opening museum in Florence , link.
So it s a realy long list of churches and museums in chuches, which open on Mondays.
So this time need Palazzo Pitti is open. Also the Boboli Gradens, link. Palazzo Pitti was the Palace of the Gouverment, the king of de Medici. Impressiv. and some good paintings in it. Cost 2 hours or more to see all the rooms.
The most important Museum Uffizi. closed all mondays, link
The most impressive Church an Cloister with wonderfull paintings is Santa Maria Novella, link.
picture rights pixabay cc daddyprime