Dyngus Day Buffalo Official Festival Halls are located in the Historic Polonia District, Black Rock, Cheektowaga, Clarence, Kaisertown and Williamsville. Dyngus Day Buffalo is one of the largest and most unique ethnic celebrations in the United States. Polka bands from across the nation, colorful Dyngus Festhall locations, ethnic dance demonstrations, traditional Polish Food and friendly people...there is NOTHING like Dyngus Day in Buffalo.