sentences:  Al-Quds mosque was attended by some of the September 11 attackers including Mohamed Atta, Marwan al-Shehhi, Ramzi bin al-Shibh, and Ziad Jarrah who formed the Hamburg cell.The mosque opened in 1993, and was run by the Taiba German-Arab Cultural Association.It occupied a three-story building near the Hamburg Hauptbahnhof rail station in a red-light district, in the St. Georg section of Hamburg.