Work continues on SEPTA's new $25 million dollar station as Amtrak's Acela Express roars through Levittown, PA. Remnants of the old station, built by the PRR in 1953 can be seen (for now) on each side of the tracks - basically, the two sheds that cover a soon to be filled underground tunnel that would often flood. The new overhead pedestrian crossing - a first for the NEC in PA, was put in to place overnight on June 17th, 2017.
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.