Florence is one of the most important Renaissance architectural and art centers. Its Duomo and Baptistery are magnificent but crowded with tourists as is their large piazza. Florence has several interesting museums with many famous paintings and sculptures. There are also Medici palaces and gardens. Florence is in Tuscany.
Greece: Take a boat to the Blue Grotto, a dazzling sea cave underlit by refracted sunlight – it is much bigger than the more famous grotto in Capri, Italy. Carry on to St George, a tiny rock-isle, to snorkel and sunbathe in seclusion. Back on Kastellorizo, hike up to the monastery and castle above the harbour for views across to Kas in Turkey – or even take a day trip there.