The main train station is Köln Hauptbahnhof, which is a busy transportation hub for regional, national and interational trains. There are good connections to all major German cities. The U-Bahn metro station is underneath the Hauptbahnhof. The train station itself is a mini shopping centre, and contains bars, restaurants, post office (open 06:00-22:00, Sun 10:00-18:00), ATMs and a small supermarket. The station itself is in the centre of town, and lies in the shadow of the Dom. The tourist infomation office is at the front of the station under the windows facing the Dom.