A shopping mall or mall was a place where several stores were combined under one roof.
In 2000, Henry Janeway called the Millennium Gate "a glorified shopping mall." Later, he remarked, "You don't sacrifice history for a shopping mall." (VOY: "11:59")
In 2004, the "Little Tokyo mall" was a shopping mall in Detroit, Michigan. (ENT: "Carpenter Street")
Farpoint Station also had a mall. In 2364, William T. Riker expressed his desire to visit it when he happened upon Beverly Crusher and Wesley Crusher, who were shopping at the station. (TNG: "Encounter at Farpoint")