May 01, 2021 Al-Dakhlah Mosque in Al-Majmaah, north of Riyadh, is one of the oldest historic mosques and believed to have been built between 850 AH and 900 AH. Al-Dakhlah Mosque in Al-Majmaah, north of Riyadh, is one of the oldest historic mosques and believed to have been built between 850 AH and 900 AH. Al-Dakhlah Mosque in Al-Majmaah, north of Riyadh, is one of the oldest historic mosques and believed to have been built between 850 AH and 900 AH. AL-MAJMAAH — Al-Dakhlah Mosque in Al-Majmaah, north of Riyadh, is one of the oldest historic mosques and believed to have been built between 850 AH and 900 AH. The Mosque is currently open for worshippers after it was renovated as part of Muhammad Bin Salman Project for Historical Mosques Renovation in the Kingdom, under which 30 mosques in 10 regions will be restored and rehabilitated.