The Shahi Eid Gah Mosque, built in 1735 by Nawab Abdul Samad Khan when he was governor of Multan, stands on the northeastern edge of the walled city beside the old Lahore road. It is a large open-air eidgah — a courtyard mosque used for the great communal prayers at the two Eid festivals — with a long prayer chamber of seven domes facing west across a vast paved yard. The exterior was originally faced entirely in glazed blue tile and the interior dressed with kashi-kari floral mosaics, the best of which still survive in patches.
The mosque suffered badly during the Sikh period, when it was used as a military barracks by Diwan Mul Raj; the two British officers Patrick Vans Agnew and William Anderson were briefly sheltered here in April 1848 before being murdered nearby, an incident that triggered the Second Anglo-Sikh War. The building was restored in the 1990s. Open outside of prayer times to respectful visitors of any religion.