A thangka wall is, in Tibetan religious architecture, a stone-built structure used for hanging giant, or monumental, appliqued thangkas, or scrolls, in some of the major Buddhist monasteries of Tibet. These giant thangkas are called gos ku, goku, gheku, kiku in Tibetan. The thangka wall stands on a hillside from where it overlooks the monastic settlement. Its form is that of a narrow, elongated and tall rectangular building with a battered façade and a flat roof surrounded by a parapet.
A thangka, variously spelt as thangka, tangka, thanka, or tanka, is a Tibetan Buddhist painting on cotton, silk appliqué, usually depicting a Buddhist deity, scene, or mandala.
Thangkas are traditionally kept unframed and rolled up when not on display, mounted on a textile backing somewhat in the style of Chinese scroll paintings, with a further silk cover on the front.
So treated, thangkas can last a long time, but because of their delicate nature, .