Saudi children celebrating the country’s National Day on a street in Riyadh on September 23, 2016.

:: The Saudi National Day is celebrated on September 23 every year to commemorate the establishment of the Kingdom of Saudi Arabia. Here are some facts about the country:

• Saudi Arabia has 83,000 square miles in area, which makes it the 13th largest country in the world.

• It is the largest country in the world without river.

• Riyadh has the world’s biggest camel market and it sells about 100 camels per day.

• Saudi Arabia will have the World’s Tallest Building in 2018 called the Kingdom Tower, which is 3,280 ft.

• It has two of the biggest mosques in Makkah and Madinah, which is visited by millions throughout the year.

• One of the ancient cities ‘Mada’in Saleh’ is located in Saudi Arabia. It has been designated as world heritage site by the UN.

• Saudi Arabia desalinates (takes out salt from seawater to make it usable) more seawater than any other country.

• Saudi Arabia has more oil than any other country in the world.

• Rub-Al Khali is the largest continuous sand desert in the world covering some 650,000 square kilometers and parts of Saudi Arabia, Oman, UAE and Yemen.