 However, in western China the mosques resemble those of Iran and Central Asia, with tall, slender minarets, curvy arches and dome shaped roofs, as well as the unique multi-layered portals.In northwest China where the Chinese Hui have built their mosques, there is a combination of eastern and western styles.The mosques have flared Buddhist style roofs set in walled courtyards entered through archways with miniature domes and minarets.