Hagios Demetrios (Church of Saint Demetrius)

Hagios Demetrios is an important Byzantine church located in Thessaloniki, Greece, dedicated to Saint Demetrius, the city's patron saint. Built between the 4th and 7th centuries, it features richly decorated mosaics, frescoes, and impressive architecture that reflect its religious and historical significance. As a UNESCO World Heritage site, it has served both as a place of worship and a symbol of Thessaloniki’s Christian heritage. The church’s layered history includes Roman, Byzantine, and Ottoman influences, making it a vital site for understanding Byzantine art, architecture, and the spiritual life of the region.