can be split into outside, courtyard, outside wall, first floor and second floor. Open in season till 8PM, entry is €6, outside wall is an additional €2. The first floor (photos prohibited) contains some artifacts of Ancient Rhodes but is closed - in it's absence, the entrance fee is entirely not worth it. The Archaeological Museum offers more selection and allows photos. Second floor has a variety of later "artifacts" such as mosaics from Kos and other odd bits and bobs, but it has almost no descriptions (probably to force people to wait for a tour guide). The Palace of the Grand Masters was demolished by a gunpowder explosion in 1856 and reconstructed by the Italians as a summer residence for Mussolini in 1940. This knowledge (that this isn't actually an authentic swords and knights castle and is instead basically a souped up country mansion) somewhat lessens the excitement. Take your photos outside, and come back to look inside when the ground floor exhibitions on Rhodes are open.