Islamic Cultural Center of Italy Grand Mosque of Rome is the largest mosque in the western world ever built, in terms of land area  It has an area of 30,000 m² and can accommodate more than 12,000 people. The building is in the Acqua Acetosa area, at the foot of the Monti Parioli, north of the city. Being the Western world’s biggest mosque,^[2] it is the seat of the Italian Islamic Cultural Centre (Italian: Centro Culturale Islamico d’Italia). In addition to be a meeting place for religious activities, it provides cultural and social services variously connecting Muslims together. It also holds teachings, wedding ceremonies, funeral services, exegesis, exhibitions, conventions, and other essential events.

The mosque was jointly founded by the exiled Prince Muhammad
Hasan of Afghanistan and his wife, Princess Razia^[3][4] and was financed by Faisal of Saudi Arabia, head of the Saudi royal family, as well as Custodian of the Two Holy Mosques. The project was designed and directed by Paolo Portoghesi, Vittorio Gigliotti and Sami Mousawi. Its planning took more than ten years: the Roman City Council donated the land in 1974, but the first stone was laid only in 1984, in the presence of then President of the Italian Republic Sandro Pertini, with its inauguration on 21 June 1995.

There was some opposition to the building of a mosque but much of this dissipated when Pope John Paul II gave his blessing for the project. One issue that had to be agreed was the height of the minaret and its effect on the Rome skyline. In the end the issue was resolved by shortening slightly the height of the minaret to be below that of the dome of St Peter’s by approximately one  meter. (Source: pages 12-13 of the September/October 1978 print edition of Saudi Aramco World).