Outdoor Advertising With Twitter-Based Murals. 

The Canadian Tourism Commission teamed up with DDB Vancouver to develop an interactive campaign to engage the cities of Chicago, New York, and Los Angeles in a playfully innovative way. The agency rolled out “digital storescapes” (a.k.a. Twitter-based murals) with a comprehensive engagement strategy that utilizes Facebook, Youtube, Twitter and a street team as platforms, enticing Americans to ‘keep exploring’ by considering travel to Canada.

via PSFK