system of high-speed trains predominantly running in Germany and its surrounding countries

The ICE (InterCityExpress), is a category of high speed trains, which are operated by the Deutsche Bahn (in English: German Rail) since 1991.

  High-speed lines for 300 km/h (186 mph)
  High-speed lines for 250 km/h (155 mph) or more
  Upgraded lines for 200–230 km/h (124–143 mph)
  Conventional lines, often upgraded for 160 km/h (100 mph)
An ICE 3 train

The trains have an operating speed of up to 300 km/h. They are one of fastest trains in the world. Some of the high-speed lines in Germany are:

There are other (upgraded) lines where the trains can reach 200 km/h. Some new high-speed lines are under construction, some are in planning.

ICE trains are also travelling to Austria, Belgium, Denmark, France, The Netherlands and Switzerland. Some of the destinations in other countries are: Aarhus, Brussels, Utrecht, Liege, Arnhem, Basel, Bern, Salzburg, Linz, Metz, Innsbruck, Amsterdam, Paris, Zürich and Vienna.