Just to give a geographic face to the London Tube bombing, here is a Google Maps link to the Parsons Green station:
https://goo.gl/maps/sPMZpWVykjQ2
An example of stateless terrorism, while on the other side of the planet, N. Korea's state terrorism, with a missile flyover of Northern Japan, caused JR East to suspend Shinkansen service for a time as reported by NHK News.