Each year on Easter, celebrants don festive finery and show off their very best bonnets along Fifth Avenue. Immortalized by Irving Berlin (with some help from Judy Garland and Fred Astaire), the pageant is a New York City tradition that stretches back to the 1870s. Starting at about 10am and continuing until 4pm, the parade marches north on Fifth Avenue, from 49th Street to 57th Street.