Le Parkour is a sport originating from France which involves treating the urban environment as an obstacle course. In other words, jumping about buildings like Spider-Man or Daredevil. It was used in one issue of Warren Ellis’ Global Frequency comic, and will probably make it into an episode of the TV series, simply because it’s so cool.
Ironically, in a comic (like the original GF story), it appears a lot less novel, because this is what acrobatic superheroes do all the time. On film it would be real cool (see the videos on the linked site for examples, including a BBC ad showing a man – Le Parkour creator, David Belle – beat rush hour traffic by jumping across rooftops, which looks like it was the jumping-off point for the GF story).