The longest ever flying flag decorated the sky of the city of Riyadh today to mark the 81st anniversary of the National Day of the Kingdom of Saudi Arabia, it was reported here. Jubilant residents of Riyadh saw a special flight hoisting a 25-meter long 9-meter high flag above the northern and eastern ring roads and King Fahd road. The show, the first of its kind in the Kingdom, was organized by the Land and Space School. On Saturday, the skies of Riyadh will be covered by the biggest photograph for the Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz Al Saud. The 30-m long and 9-m high photo will be aired by a special flight, organizers said.