The museum was built in 1905 to house the findings from the Purification Pit of 426/5 BC, which was discovered in 1898 on the islet of Rheneia by D. Stavropoulos.

One of the oldest museums in Greece, it was designed by Alexandros Lykakis and funded by the Ministry of Education and the Archaeological Society of Athens. The land was donated by the Municipality of Mykonos.

The original Neoclassical building underwent refurbishments and expansions in the 1930s and 1960s and the large eastern room was added in 1972. The majority of the collection consists of artifacts from the neighbouring island Rhenia, including glorious 9th-8th century BC ceramic pottery from the Cyclades and 7th-6th century works from other areas in the Aegean. The museum?s most famous exhibit is the large vase produced in Tinos, showing scenes from the fall of Troy. And don't miss the two beautiful bridal kettles and the Hellenistic grave stelae found in Rhenia.

List of exhibitions:
Funerary statues and grave stelae dating from the 2nd/1st century B.C.
Pottery dating from the 25th to the 1st century B.C.
Clay figurines dated to the 2nd/1st century B.C.
Jewellery and small objects of the 2nd/1st century B.C.