The main prayer hall houses the world’s largest hand-knotted carpet, by Guinness World Records in 2007. The intricate Islamic medallion carpet was hand-knotted by approximately 1,200 artisans and took around 2 years, including 8 months of designing and 12 months of knotting. The rest of the time was spent weaving the pieces together. The carpet measures 5,627 square meters, the weight of this carpet is 35 ton and about 70% is made of New Zealand wool and 30% of cotton. There are 2,268,000,000 knots within the carpet.