The historical Al-Zarqa Mosque is located in the old town of Tharmada of Marat Governorate northwest of Riyadh and stands as one of the most prominent heritage buildings in the region, which has been renovated as part of Prince Mohammed bin Salman Project for Historical Mosques Renovation in the Kingdom of Saudi Arabia, under which 30 mosques in 10 regions will be restored and rehabilitated. The construction of the Mosque dates back to the reign of Imam Faisal bin Turki during the period between 1259 AH to 1282 AH and was rebuilt and expanded by the order of the late King Abdulaziz Al Saud to accommodate the growing number of worshipers. Among the most prominent imams of the mosque are Ibrahim Abdullah Al-Anqari, Abdulrahman Mohammed Al-Muqrin, Ibrahim Abdulrahman Al-Anqari, Abdullah bin Hamid Al-Hamid, and among the most prominent muezzins Abdullah Al-Qasim and Abdulkarim Abdullah Al-Shaalan. Al-Zarqa Mosque is located to the north of the old town of Tharmada, on the road linking Tharmada and Shaqra, and about 5.5 km from Marat. The mosque is distinguished by its construction of mud and stone, with its roof built of Tamarix and palm fronds, spreading on a total area amounting to around 326 square meters. The mosque used to accommodate nearly 100 worshipers and consisted of a prayer house, Al-Sarha, a retreat, a place for ablution, a well, a basin and a washing room, and a square-shaped minaret with a height of about 11.29 m located to the north of the mosque. The mosque has two entrances, one in the northeast and the other in the north. After the renovation process, the historical Mosque currently includes the prayer house, a depot, Al-Sarha, restrooms, places for ablution, and can accommodate up to180 worshipers.