The Monastery of Taxiarhes was founded on 1570 A.C. and from the outside it looks more like castle, as it has very tall walls, loopholes and a scalding bowl. Here you will find remarkable relics, cult vessels, remains from murals of the 17th century, old manuscripts, the golden inlaid temple and a corpus of 1754 A.C. where the settlements of Serifos are listed.