One of the most intriguing structures of Old Smyrna, the Double Megaron, consists of a multi-roomed building. The structure, with original dimensions of 13 × 10 meters, was made up of adjoining rooms believed to have opened onto the same courtyard. Prof. Dr. Ekrem Akurgal suggested that it might have been a two-story building, dating it to the late 7th century BCE to the early 6th century BCE.