Get in the Christmas Spirit with our Annual Christmas Walk! Shop all of the Avenues: Miami, Venice and Tampa Avenue late, from 5 p.m. to 8 p.m. Enjoy specials, discounts and goodies from participating merchants! — About Venice MainStreet: Venice MainStreet is a 501c3 volunteer driven nonprofit committed the historic preservation and economic vitality of Historic Downtown Venice. Mission: Venice MainStreet is committed to preserving and enhancing a quality environment in downtown Venice for present and future generations through organized volunteer efforts by focusing on its historic character and economic vitality.