Sheikh Zayed Grand Mosque is probably the biggest religious and national landmark in Abu Dhabi. It was initiated and named after the first president and the father the UAE. It has materials from countries such as Italy, Germany, Morocco, India, Turkey, Iran, China, Greece and the UAE. More than 3,000 workers and 38 contracting constructed the Mosque. The 22,412 square metre Mosque site is equivalent to around the size of five football fields, and can accommodate 40,960 worshippers – 7,126 in the main male prayer hall; 1,960 in the open prayer hall corridors; 980 in the woman’s prayer hall; 22, 729 in the open courtyard; as well as 682 and 784 in the mosque’s main hall entrance. The mosque has 82 domes of Moroccan design decorated with white marble. The main dome is 32.8 metres in diameter and 70 metres high, the largest of its kind. The mosque has about 1,000 columns in its outer areas which are clad with more than 20,000 marble panels inlaid with semi-precious stones, including lapis lazuli, red agate, amethyst, abalone shell and mother of pearl. The 96 columns in the main prayer hall are round in shape and inlaid with mother of pearl. Additionally, the Mosque has four beautiful minarets standing at almost 107 metres each at the four corners of the mosque. The 22,412 square metre Mosque site is equivalent to around the size of five football fields, and can accommodate 40,960 worshippers – 7,126 in the main prayer hall; 1,960 in the open prayer hall; 980 female worshippers in the open prayer hall female section; 22, 729 in the open Sahan (courtyard); 682 in the main prayer hall entrance and 784 in the mosque’s main hall entrance. The carpet in the main male prayer room is the "World's Largest Carpet" made by Iran's Carpet Company and designed by Iranian artist Ali Khaliqi. This carpet measures 5,627 m2 (60,570 sq ft), and was made by around 1,200 weavers, 20 technicians, and 30 workers. The weight of this carpet is 47 tons – 35 tons of wool, and 12 tons of cotton. There are 2,268,000,000 knots within the carpet. This mosque also holds the largest chandelier. There are seven imported chandeliers from Germany made from gold-plated copper and fitted with millions of Swarovski crystals. The largest chandelier has a 10 m (33 ft) diameter and a 15 m (49 ft) height.