The Museum of prehistoric Thera (Thira) is located on the island of Santorini in Fira town. The artifacts presented in the Museum were mostly discovered during excavations at Akrotiri, conducted under the guidance of the Archaeological society in Athens. There are in the Museum and relics from earlier excavations at Potamos, held under the leadership of the German archaeological Institute in Athens, as well as from archaeological excavations in different parts of Santorini.

In the collection of the Museum presents the ceramics of the Neolithic period, early Cycladic figurines of marble and pottery, including works of the transition period, the collection vessels with images of birds (mainly swallows) 20-18 century BC and a variety of products from metal. The Museum also exhibited domestic utensils, murals, weapons, furniture, tools, bronzes and much more. Since the peak of the ancient settlement was in the 17th century BC, much of the exposition belongs to this period.

The most notable exhibits include gold Capricorn – this is the only gold object was found, was once hidden under the floor. Also, we should mention a marble statuette from Akrotiri Aksu (3000 BC), a jug of island Christian (3000 BC), a vase with lilies (17th century BC), Minoan vase from Akrotiri Aksu (17th century BC), a pitcher from Megalochori (early 17th century BC), the imprint of a wooden table (17th century BC) and a clay oven. Of particular interest is the wall painting, such as "Blue monkeys" and "the woman with the papyrus".

The Museum of prehistoric Thera is quite young and was opened to visitors only in 2000. Earlier archaeological artifacts found on Santorini, for the most part went to the national archaeological Museum in Athens, but after the opening of a local Museum part of the collection was returned. The exposition of the Museum is very interesting and has huge historical significance, which confirms how important place was occupied Santorini in the culture of the Aegean Islands.