Yes,Faisal Mosque is one of the largest mosques in the world.It was completed in 1986 and the total cost for building it is $120 million.It is located in Islamabad,Pakistan.It is about 5000 square feet and can hold at least 300 000 worshippers.
Covering an area of 5,000 square meters the mosque has the capacity to accommodate 300,000 worshippers, therefore, capicity-wise it is the largest mosque in the world.
The largest mosque in the world is the Masjid al-Haram, also known as the Grand Mosque. The current structure covers an area of 4,008,020 square metres (990.40 acres) including the outdoor and indoor...