Soltaniyeh

Soltaniyeh (Persian: سلطانيه) situated in the Zanjan Province of Iran, some 240 km to the north-west from Tehran, used to be the capital of Ilkhanid rulers of Persia in the 14th century. Its name translates as "the Imperial".

The central magnet of Soltaniyeh's several ruins is the Mausoleum of Il-khan Öljeitü also known as Muhammad Khodabandeh (Persian محمد خدابنده - اولجایتو), traditionally known as the Dome of Soltaniyeh. The structure, erected from 1302 until 1312. Its importance in the Muslim world may be compared to that of Brunelleschi's cupola for the Christian architecture.