The Grand Mosque in Muscat is one of the most beautiful and extravagant modern mosques in the world. It first opened in 2001 and took six years to build. It features an amazing blend of Islamic, Middle Eastern, and Omani architectural styles, and also hosts one of the world’s largest handmade Persian rugs and one of the world’s biggest chandeliers, with 600,000 shining bright Swarovski crystals and weighing some 8,5 tons!