St. Panteleimon

St. Panteleimon is a Byzantine church in Thessaloniki featuring a square layout with four supporting columns that carry a central dome, and two remaining side chapels on the eastern side. The structure demonstrates the cross-in-square design that was common for religious buildings during this period.

The building was constructed during the Byzantine period and was converted into a mosque named İshakiye Camii following the Ottoman conquest of the city in 1548. After 1912, the structure returned to Christian religious use and has functioned as a church since then.

The name derives from a revered Christian saint, and the interior layout follows the Byzantine pattern with a central domed space and side chapels designed for prayer and worship. The spatial arrangement still communicates how worshippers would have moved through and experienced the sacred space.

The church is located at the intersection of Iasonidou and Arrianou streets in eastern Thessaloniki, close to the Tomb of Galerius. The site is easily accessible on foot and sits in a neighborhood containing other historical structures from different periods.

Inside the church, a marble fountain and the remains of a minaret base from the Ottoman period are still visible, documenting the building's long history of use. These remnants clearly show how the structure served different religious purposes over the centuries.