The church of Taxiarches in Polichni, built in the late 10th century, is located north of the village. It belongs to the rare type of a cross-in-square church with “a shortened west arm”. The dome has a cylindrical drum and is reinforced internally by two intersecting ridges, a feature which is unusual in byzantine churches in Greece. The church was extensively modified in the 18th century (partition walls, strengthening of the vaults with supporting arches and walls, abolishment of the cruciform layout of roof on the outside, and construction of a single gable roof over the nave and narthex). In 1929 a timber roofed exonarthex (outer narthex) was added.

Remains of an enceinte are visible to the north, east and south of the church, with at least three construction phases. The site has been identified with the castle of the Archangel, referred to in written sources, as built during the Francocracy (Frankish period). The fortification has a square plan; a ruined tower-like building, with two building phases, rises at its south-western corner. The first phase is contemporary with the enceinte and the second one dates to the Ottoman rule (18th century).