Decorative Colored Glass. Stained glass windows are widespread in Jerusalem’s Islamic architecture mainly as an ornamental feature in the interior design of mosques and madrasas (theological institutions) like the Dome of the Rock and al-Aqsa Mosque. Light penetrating through colored glass projects the lavish patterns on the interior surfaces. In the late 19th century and early 20th century some of the liwans (reception rooms) in affluent Arab mansions were also adorned with stained glass, set within stylized wooden window frames.