Iranian Architect: Soltaniyeh Dome’s Double-Shell Structure Is Unique

TEHRAN. (Iranart) –Iranian architect Parviz Talaei says the Mausoleum of Il-khan Oljeitu, known as the Soltaniyeh Dome, a 700-year-old brick structure located near Iran's western province of Zanjan, is unique because it has double-shell structure, built of two parallel and completely separate brick layers connected with buttresses.