Church of Panagia Acheiropoietos, Thessaloniki

The Church of Panagia Acheiropoietos, located in the center of Thessaloniki, is a remarkable example of early Byzantine architecture. Dating back to the 5th century, it sits prominently on Agias Sofias Street across from Makedonomachon Square, adding to the city's rich historical heritage. Recognized for its architectural and cultural importance, it was listed as a UNESCO World Heritage Site in 1988.

Built between 450 and 470 AD, the Acheiropoietos is one of the oldest surviving churches in Thessaloniki. It has undergone renovations over the centuries. Originally named Panagia Theotokos during the Byzantine era, it was dedicated to Mary. Its current name, Acheiropoietos, was adopted around 1320, likely due to a miraculous icon of Panagia Hodegetria believed to have been created without human hands. Additionally, the church played a role in the veneration of Saint Demetrius, the city's patron saint.

Architecturally, the Acheiropoietos is a basilica with three aisles, measuring 28 meters wide and 36.5 meters long, featuring a distinctive wooden roof. Its structure includes a semicircular vault at the eastern end, a narthex with towers on the western side, and remnants of an exonarthex. The aisles are separated by columns, with galleries above the side aisles. Adjacent to the northern aisle is a chapel dedicated to Saint Irene from the Middle Byzantine period, accessible via a stairway in the northwestern corner. The main entrance is through a triple-arched tribelon, and it likely had a grand southern entrance connecting it to the main street of the Byzantine era.

Inside, the church boasts exquisite decorations dating back to its origins, including 5th-century Ionian capitals, green Thessalian marble columns, Proconnesian marble flooring, and remnants of decorative mosaics. Notably, the southern side features frescoes from the early 13th century depicting the Forty Martyrs of Sebaste, while Roman-era bathhouse mosaics have been found beneath the north aisle.

Following the Ottoman conquest in 1430, the Acheiropoietos was converted into a mosque, known as the Old Mosque, by Sultan Murad II. Today, the Church of Panagia Acheiropoietos stands as a significant religious site and a cherished symbol of Thessaloniki's rich history and architectural heritage.