In a town where most of the street festivals have become indistinguishable, the Larimer Arts Association came up with something completely different last year: In the great Renaissance tradition, the group invited artists of all levels to decorate the sidewalk with chalk art. Over two days, the corridor became a canvas of colors, sounds and food. La Piazza dell'Arte will return again this year on June 19 and 20, with a bigger, better format that includes an opportunity for artists to reproduce and preserve their street fare for a gallery show, since the actual pavement chalk drawings are washed away at the end of the weekend. Step right up.