|In this case, M is for "mural" (and also maybe "movement").|
The first mural to occupy this space at the corner of
Houston and Bowery was a 2008 recreation of Keith Haring's
famous 1982 Bowery mural. Since then,
several artists' works have graced this wall.
The latest (since July 2012) is this one by Lady Aiko.
[To see more posts that feature the letter M, visit Tina's Picstory.]