Grande Mosquée de Paris

The Paris Mosque was built in 1922 to honor the North African countries that had helped France during World War I. A major renovation was completed in 1992.

Made of reinforced concrete, the mosque was decorated with mosaics, wood carvings and wrought iron brought from Morocco. It remains an active place of worship for North Africans living in Paris, especially on Friday, the Muslim holy day, and during the holy month of Ramadan. (Source)

Official website in french.