The Mosque was constructed between 1996 and 2007. It was designed by Syrian architect Yousef Abdelky] The building complex measures approximately 290 m (960 ft) by 420 m (1,380 ft), covering an area of more than 12 hectares (30 acres), excluding exterior landscaping and vehicle parking. This architectural work of art is one the world?s largest mosques, with a capacity for an astonishing 40,000 worshippers. It features 82 domes, over a 1,000 columns, 24 carat gold gilded chandeliers and the world's largest hand knotted carpet. The main prayer hall is dominated by one of the world?s largest chandeliers ?10 metres in diameter, 15 metres in height and weighing twelve tonnes. The mosque's first ceremony was the funeral of its namesake, Sheikh Zayed, who is buried at the site. Reflective pools surround the mosque, amplifying its beauty. The striking white and gold colours shining in the sun are transformed at night by a unique lightning system which reflects the phases of the moon. It has many special and unique elements: The carpet in the main prayer hall is considered to be 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 1,200-1,300 carpet knotters. The weight of this carpet is 35 ton and is predominantly made from wool (originating from New Zealand and Iran). There are 2,268,000,000 knots within the carpet and it took approximately two years to complete. The Sheikh Zayed Grand Mosque has seven imported chandeliers from the company Faustig in Munich, Germany that incorporate millions of Swarovski crystals. The largest chandelier is the second largest known chandelier inside a mosque, the third largest in the world and has a 10 m (33 ft) diameter and a 15 m (49 ft) height. The pools along the arcades reflect the mosque's spectacular columns, which becomes even more glorious at night. The unique lighting system was designed by lighting architects Speirs and Major Associates to reflect the phases of the moon. Beautiful bluish gray clouds are projected in lights onto the external walls and get brighter and darker according to the phase of the moon.