The Archaeological Museum is housed within the walls of the restored Hospital of the Knights (15th century).

From the courtyard, a staircase leads to the Infirmary on the upper floor (a small chapel in a recess opposite the entrance; gravestones of the knights). The passage on the right leads to the halls where the exhibits found in Ialyssos, Kamiros and other places are exhibited. Among them are two archaic kouros (6th century BC) and in the same room a funerary stele (late 5th century BC). In other rooms you can see a life-size statue of Aphrodite, the expressive head of Helios of the Hellenistic era and a small statue of Aphrodite bowing, the so-called Venus of Rhodes (1st century BC). Also of interest is the rich collection of vases, spanning all periods from the Mycenaean era, and including some particularly fine examples of Rhodian wares.