 The Aqmar Mosque was built in the under vizier al @-@ Ma 'mun al @-@ Bata <unk> during the caliphate of Imam Al @-@ Amir bi @-@ <unk> l @-@ Lah . The mosque is located on north Muizz Street . It is notable for its façade , which is elaborately decorated with inscriptions and geometric carving . It is both the first mosque in Cairo to have such decoration , and also the first to have a façade which follows the line of the street , built at an angle to the rectangular hypostyle hall whose orientation is dictated by the qibla direction . 
