Walk around East Harlem and you’ll see some of the most amazing graffiti in not only the city but the world. From the Graffiti Hall of Fame on 106th to the murals that dot the neighborhood, there’s plenty to keep your eyes engaged. But there’s another side of art on the streets that makes New York a moving art gallery — graffiti on wheels.  Thousands of trucks roll through the city everyday emblazoned with original art that inspires and bewilders. Whenever we see one, we try to snap a pic before if rumbles on by. Here are some of our favorite ones we’ve stumbled upon in the last year:

Bringing a splash of color to the E Village. C. Nelson, 2012

Rolling through Union Square. C. Nelson, 2012.

Angry Birds taking over the W Village. C. Nelson, 2012.