Monday, March 17 is St. Patrick's Day, celebrating all things Irish in the U.S. and around the world. Cities celebrate with parades, bar crawls and more.

As many people find green to wear today and head to a local pub for a green beer, the meaning behind St. Patrick’s Day goes beyond color and pinching. Here are some facts to know about the Irish holiday.

It was a sea of green and gold in St. Paul on Monday as thousands gathered to celebrate the city's annual St. Patrick's Day parade. "It's beautiful to see everyone wearing green — no matter what your nationality or where you're from," Dan Kelly said.