A DB ICE in France. Velaro set No 709 passes the junction at Brouviller forming the 10.54 Stuttgart to Paris Est service. This would be travelling at approaching 320kmh. (see my photo id #456849 at this location when the line was under construction).
Acela (US), TGV (FR), Velaro (Ger, although there are British, Chinese and Russian versions as well)
There are other systems, such as the Japanese Shinkansen.