The church is very small, but it is one of the most important UNESCO World Heritage Sites. This church contains some of the finest Byzantine frescoes on the island, dating back to the 12th century AD, and reflecting the art of Constantinople at that period. Other than that, this church was built as a monastery in 1099. This church consists of two main parts: the sloping and arranged dome, which is a later addition belonging to the second half of the twelfth century, and the narthex, which was called the waiting area in The period of the Byzantine rule.