In the capital of the beautiful Greek island of Rhodes, at the famous street of the Knights in the Old Town is an old Byzantine church of Panagia tou Kastrou. This is one of the most imposing building of medieval Rhodes, and the main monument of the Byzantine era. Today, the church building is located a magnificent Byzantine Museum.

The Church of the Panagia Kastrou was built in the XI century. Initially, the architecture of the building was a typical Byzantine structures cross-domed church with a long western part. After Rhodes came into the possession of the Knights of the Order of St. John is located in the building of the Roman Catholic Cathedral, as evidenced by a papal bull of 1322. It was carried out extensive restoration work and changes in the architecture of the building. In fact, the church was rebuilt into a three-nave church with a transept. Since then preserved some fragments of wall paintings dating from the 14th century.

In 1522, after the capture of the island by the Turks, the church, however, as many Christian churches have been converted into a mosque Ederum (also known as the Red Mosque). Minaret was completed and a special prayer niche - mihrab and wall paintings hidden behind the brickwork. Turkish additions were destroyed during the reign of the Italians on the island. Later the building was given to the jurisdiction of the Greek Archaeological Service.

In 1988, the walls of the church of Panagia tou Kastrou began to hold exhibition of Byzantine and post-Byzantine painting. Today it houses the Byzantine Museum of Rhodes with a large collection of icons and frescoes. The most valuable exhibits of the museum are considered fine examples of art from the XII century monastery Taree and frescoes from the church of Agios Zaharios from the island of Halki (the end of the XIV century).