German street artist Edgar Müller created the 3D work called "Ice Age" on a street in Dun Laoghaire, Ireland last August as part of the Festival of World Culture. Müller, who makes the streets his own screen, spent 5 days to create his latest work, with the help of 3 assistants on an area of 250 square meters.
From the Upcoming ueue, submitted by diegotoledo.
im presuming (probably wrong) that he uses chalk.