(Belgium - Denmark - France - Germany - the Netherlands - Switzerland)
ICE trains link major cities across Germany. Regardless of where your travels begin - in the west in Cologne, the east in Berlin or in neighboring countries such as France, Denmark or Austria, the ICE, with regular hourly services, is a great option for your travels through Germany. ICE trains have all the conveniences of modern high-speed trains, including air conditioned cars, reclining seats with plenty of leg room, video screens and audio systems. Some trains have public phone booths as well as luggage lockers to store your valuables while you explore the train or dine in the restaurant car. Most trains also include a family friendly area, facilities for disabled travelers and quiet zones.
More info about ICE high-speed train