Located in the Iranian city of Zanjan, Soltaniyeh Dome is one of the outstanding examples of Persian architecture from 14th century. The turquoise-blue dome stands as the earliest existing example of the double-shelled dome in Iran.

The mourners in the city of Zanjan, 300 kilometers northwest of the capital Tehran, marked the eighth night of Muharram that commemorates Imam Hussein (AS), third Shia Imam and grandson of Prophet Mohammad (PBUH).