Zanjan Architectural Masterpiece (UNESCO Heritage)
Soltaniyeh Dome is one of the architectural masterpieces and the largest brick dome in the world of the Islamic period. King Öljaitü (Mongol rule of the Ilkhanid period) changed his religion into Islam through cultural effects. He decided to create an eight-angel, delightful historical dome in the city of Soltaniyeh in Zanjan province. Good to know that the church of Santa Maria del Fiore Dome in Florence is a good copy of Soltaniyeh. Besides, the Taj Mahal is another good duplication of Soltaniyeh too.