The architectural school of Nakhchivan is one of the architectural schools developed in the Middle Ages in what is modern Azerbaijan. It was founded by Ajami Nakhchivani in the 12th century. The mausoleums of Yusif ibn Kuseyir from 1162 and Momine Khatun from 1186, designed by him in Nakhchivan, are classic examples of the associated architectural style.

Momine Khatun Mausoleum is a mausoleum, also known as the Atabek Dome, located in the city of Nakhchivan of the Nakhchivan Autonomous Republic in Azerbaijan. It was built in 1186 by the architect Ajami ibn Abubekr Nakhchivani. The ten-sided mausoleum reached a height of 34 meters. Today its height is only 25 meters. The mausoleum, built and named after the mother of one of the local rulers of Azerbaijan, Atabek Jahan Pahlavan of Ildegezid dynasty, is masterfully decorated with complex geometric ornaments and inscriptions from Koran.