For the third year, Columbia Heights will assemble a wall calendar featuring images submitted by the public. This year’s theme is “Art of Columbia Heights.” Three categories of submissions are eligible: 1.) Paintings, drawings, or graphic designs by Columbia Heights residents or of Columbia Heights landmarks, events, or performers. 2.) Photos of art, architecture, performances, artists, and other artistic things in Columbia Heights. 3.) Photos taken within Columbia Heights that are particularly artistic by themselves or edited in artistic ways…