The city popping up first when people think of the Ruhr district is Dortmund. Being the largest Ruhr city, it is also the third largest by population in the state of North Rhine-Westphalia right after Cologne and Düsseldorf. Worldwide Dortmund is foremost known for famous sports club “Ballspielverein Borussia 09”, BVB for short. Their stadium is called Westfalenstadion, currently named Signal Iduna Park after one of the main sponsors. Close to the wonderful Westfalenpark, holding Dortmund’s landmark tower, the Florianturm, it is the biggest football stadium in Germany, so football fans should definitely see a game there. The strong ties to football led to the opening of the German Football Museum, across from central station in 2015 by the German Football Association. So there is much to experience for football-crazies. People that don’t care about ball-kicking can walk about five minutes from the museum to the Dortmunder U, also called U-Tower. The 7-story building, formerly used by local Union brewery, is home to Museum Ostwall and Hartware MedienKunstVerein. Both are curating modern and contemporary art. One focuses on covering graphics, paintings, photographs and sculptures while the other is dealing with experimental and media art as well. Fans of the medieval times don’t want to miss out on the remains of Hohensyburg, the ruins of a castle built by the Saxons. It is outside of the city but once you get there, you will love the view. And if the fresh air makes you feel like you could gamble away some euros in a German-style Las Vegas, you are able to do so at the well known Casino Hohensyburg nearby.