I'm not sure if this artwork was planned for the side of the building, or is technically vandalism. However it is classified, it adds nice color to this section of Pearl Street in Boulder, Colorado.
While walking on 28th Street in Boulder, this squirrel followed me, hopping from log to log on the side of the building. I'm fairly certain he was defending his territory from my two legged invasion.
Many musicians can be found along the Pearl Street pedestrian mall in Boulder. Most are playing guitars, banjos, mandolins or the occasional violin. This was the first person I've seen drag an upright piano out for a performance.