History of Cologne (Cologne Tower), one of Cologne's most prominent highrises. Secondly, a permanent improvement in traffic infrastructure, which makes Cologne one of the most easily accessible metropolitan areas in Central Europe. Due to the economic success of the Cologne Trade Fair, the city arranged a large extension to the fair site in 2005. The original buildings, which date back to the 1920s, are rented out to RTL, Germany's largest private broadcaster, as their new corporate headquarters. A controversy started after Muslims in Cologne sought to build a mosque. Most important for the history of Cologne since the Middle Ages is the Cologne
Districts of Cologne Districts of Cologne Since the last administrative reform in 1975, the City of Cologne is made up of nine Stadtbezirke and 86 Stadtteile. "Stadtbezirk" literally translates as city district, which are further subdivided into "Stadtteile" (city parts). The Stadtteile of Cologne's old and new town ("Alt-" and "Neustadt") further consist of quarters, known as ""Veedel"" in both Kölsch and most often, the Rhinelandic regiolect, as well. City districts are differentiated of being "links-" or "rechtsrheinisch" – "left" or "right of the Rhine", with the old town being left of the Rhine, as are 230,25 km² (56.8 percent of 405,14 km²