Shah Faisal Mosque (Islamabad, Pakistan)

The mosque was constructed with the assistance of Saudi Arabia’s King Faisal and took 12 years to build --- from 1976 until 1988 --- based on the design of a leading Turkish architect. It is one, if not the biggest, mosque in the world and can accommodate 24,000 worshippers plus another 40,000 in its courtyard. Its 4 minarets are 88 meters high each.

Olympus Camedia (G20 Parallel People's Conference, September 2005). Slightly improved with Picasa.