Tile from a Squinch second half 14th century This intricately carved tile exhibits a distinctive curving arched shape that identifies it as a muqarnas element. A muqarnas is a stalactitelike form that often adorns the interior curves of domes, niches, and portals of Islamic buildings. The precise origin of this tile remains unknown, although it is similar to tiles used at the Shahi Zinda funerary complex in Samarqand.. Tile from a Squinch. second half 14th century. Stonepaste; carved and glazed. Attributed to present-day Uzbekistan, Samarqand. Ceramics-Tiles