Nuremberg is the second-largest city of the German federal state of Bavaria after its capital Munich, and its 511,628 (2016) inhabitants make it the 14th largest city in Germany. On the Pegnitz River (from its confluence with the Rednitz in Fürth onwards: Regnitz, a tributary of the River Main) and the Rhine–Main–Danube Canal, it lies in the Bavarian administrative region of Middle Franconia, and is the largest city and the unofficial capital of Franconia. Nuremberg forms a continuous conurbation with the neighbouring cities of Fürth, Erlangen and Schwabach with a total population of 798,867 (2018), while the larger Nuremberg Metropolitan Region has approximately 3.6 million inhabitants. The city lies about 170 km north of Munich. It is the largest city in the East Franconian dialect area (colloquially: "Franconian"; German: Fränkisch), Nuremberg was one of the host cities of the 2006 FIFA World Cup.