The multiple aspects of the concept of Kallos in the everyday life and the philosophical discourse of ancient Greece are presented in the major, emblematic, archaeological exhibition of the Museum of Cycladic Art, titled “ΚΑLLOS. The Ultimate Beauty”. The exhibition will run from the 29th of September 2021 until the 16th of January 2022 and will take place with the generous support of L’Oréal.   Τhis exhibition displays three hundred emblematic antiquities from fifty-two museums, collections, and Ephorates of Antiquities throughout Greece, as well as from Italy, and the Vatican. The overwhelming majority appear for the first time outside of the museums of their provenance. They meet and mingle in the Museum of Cycladic Art, so as to give an integrated picture of the ideal of Kallos, inadequately translated into English as Beauty. The selected exhibits date mainly from the seventh to the first century BC – that is, from the Archaic to the Hellenistic period – and are complemented by a handful of works of Roman times in those cases where the original creations of earlier periods have survived only in copies.