NEW YORK (AP) — St. Patrick’s Day, the annual celebration of all things Irish, is being marked in cities across the country on Monday with boisterous parades and celebrations. New York City hosts one of the largest and oldest parades in the United States.

Saint Patrick's Day, originally a religious holiday, has blossomed in the United States into a cultural celebration that draws millions. New York and Chicago stand out with their parades and events honoring Irish heritage,

St. Patrick’s Day, the annual celebration of all things Irish, is being marked in cities across the country on Monday with boisterous parades and celebrations. New York City hosts one of the largest and oldest parades in the United States.