 Karlsruhe is part of the urban area of Karlsruhe/Pforzheim, to which certain other towns in the district of Karlsruhe such as Bruchsal, Ettlingen, Stutensee, and Rheinstetten, as well as the city of Pforzheim, belong.The city was planned with the palace tower ("Schloss") at the center and 32 streets radiating out from it like the spokes of a wheel, or the ribs of a folding fan, so that one nickname for Karlsruhe in German is the "fan city" ("Fächerstadt").Almost all of these streets survive to this day.