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Photo: Jb-mhr, CC BY-SA 4.0 via Wikimedia Commons
Part of the mausoleum for the 14th century ruler Il-khan Öljeitü, the dome in Soltaniyeh is the third largest brick dome in the world after Santa Maria del Fiore in Florence and Hagia Sophia in Istanbul. The dome, together with the mausoleum complex has been a UNESCO World Heritage site since 2005.
The Dome of Soltaniyeh – variously called the Mausoleum of Oljaytu, Tomb of Uljaytu, or Soltaniya complex, among other designations – is a historic mausoleum and monument complex, located in Soltaniyeh, Zanjan, Iran. It was built as the mausoleum of the Ilkhanid Mongol ruler Öljaitü. It was originally the centerpiece of a larger complex of buildings that included a mosque, residences, and other services, though these other buildings have generally not been preserved.
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