The modern Shah Faisal Mosque:

One of the largest mosques in the world, its relatively unusual design fuses contemporary lines with the more traditional look of an Arab Bedouin's tent, with its large triangular prayer hall and four minarets. However, unlike traditional mosque design, it lacks a dome, and like a tent, the weight of the main prayer hall in the center is supported by the four minarets. The minarets borrow their design from Turkish tradition and are thin pencil like. The interior of this prayer hall holds a very large chandelier and its walls are decorated with mosaics and calligraphy by the famous Pakistani artist Sadeqain. The mosaic pattern adorns the west wall, and has the 'kalima' writtern in early kufic script, repeated in mirror image pattern.

The mosque is like a whole mini-village with its own library, museum, lecture hall, café, and University of 700 students. However, it is not only the impressive size and exterior for which the mosque is famed - it also supports as an equally elegantly designed interior. The Qibla Wall inside the Main Prayer Hall has many decorated glazed tiles from Turkey and a giant golden crescent in the roof. Underneath the wall are reflection pools which allows for air conditioning by adjusting the water level of the pool. There is a giant chadelier in the main prayer hall which weighs some 7.5 tons and uses 1000 electric bulbs.

There is a Women's gallery which is rare for a mosque; women in Pakistan rarely enter mosques but instead pray at home. Zebra marble and white marble from Greece are used here. The courtyard is paved in Italian granite making it quite an international affair.
http://www.npm.com.pk/islthebeautiful.htm