Freiburg im Breisgau is the fourth-largest city of the German state of Baden-Württemberg after Stuttgart, Mannheim and Karlsruhe. Its built-up area has a population of about 355,000, while the greater Freiburg metropolitan area has about 660,000.
Freiburg is located at the southwestern foothills of the Black Forest, on the Dreisam River, a tributary of the Elz. It is Germany's southwestern- and southernmost city with a population exceeding 100,000. It lies in the Breisgau, one of Germany's warmest regions, in the south of the Upper Rhine Plain. From Wikipedia
