The Al-Fateh Mosque also known as Al-Fateh Islamic Center & Al Fateh Grand Mosque is eighteenth of the largest mosques in the world
, capable of accommodating over 7,000 worshippers at a time. he mosque is the largest place of worship in Bahrain. It is located next to the King Faisal Highway in Juffair, which is a town located in the capital city of Manama. The mosque very close to the Royal Bahraini Palace, the residence of the king of Bahrain Hamad ibn Isa Al Khalifah. The huge dome built on top of the Al-Fatih Mosque is made of pure fiberglass.
source : http://thewondrous.com