MANHATTAN - Occupy protesters held rallies around the country to mark May Day today.In the city, demonstrators began with a massive rally at Bryant Park before marching to Union Square and eventually Zucotti Park.While that march is the big planned event, there were more protests all over the city. Dozens marched over the Williamsburg Bridge while others gathered by financial buildings.Today, Occupy organizers have also aligned with labor unions, who traditionally protest on May Day.