I'm pretty behind with this blog - spent most of my time in architecture world while I was in Berlin. My apologies for the delay.
Copenhagen's street art scene is very prolific. Most of the city is tagged - these aren't very interesting in and of themselves (unless you're really into tags... I am not).
The most interesting work can be found on the number of permission walls scattered throughout the city. There's one section of land by the port that is best described as an open-air grafitti art gallery.
The plot is about 150m x 300m (500 x 1000 ft) - all enclosed by walls; all covered by pieces. The centerpiece could be called "evolution" - a huuuuge mural stretching across the long wall. It starts on one side with the big bang and chronicles the history of the planet through the ice age.