I found this stencil about a year ago, not far from where I live.  It was painted onto a boarded up window of a gorgeous old building that has stood empty for about 3 years.  I thought it was a beautiful piece of art and really complemented the building.  The city council graffiti busting vans wiped it out a few months ago.  The building is now being converted into more apartments.

Ad astra per aspera