A landmark reflecting both Byzantine and Ottoman architectural layers. This is the historic site of the First and Second Ecumenical Councils, where early Christian doctrine was shaped.

Explore the remains of a 2nd-century Roman theatre, including seating blocks, stage foundations, vaulted galleries, and active excavation areas revealing multiple historical periods.

A beautifully restored mansion displaying: • Ottoman ceramics and tiles • Calligraphy • Archaeological artifacts • Ethnographic collections

Neophytos Underwater Basilica A fifteen hundred year old basilica visible beneath Lake Iznik. Architectural outlines and submerged structural remains are observed from the shore. The site is connected with early Christian tradition and underwater research projects.

Iznik City Walls and Lefke Gate The most intact section of Iznik fortifications presenting towers, arches, and defensive features from the Roman and Byzantine eras.

Historic tile firing kilns illustrating traditional Iznik ceramic production and Ottoman decorative arts.

Traditional Tile Workshop Artisans demonstrate drawing, painting, glazing, and firing techniques of classical Iznik tilemaking. Finished pieces are displayed in the workshop.