Chicago has a longstanding tradition of turning the river green for  St. Patrick’s Day.  This year, their goal is more than a green river, they have set out to be the “greenest city” for a second year in a row.

“We will have the most buildings lit up in green of any other city in the world,” said Blair Ciecko, director of ShamROCK Chicago. “I don’t think we should have a problem nabbing the title of greenest city.”

Fifteen buildings and structures will participate in the  “greenest city” event. Trump Tower, Navy Pier, John Hancock Center, Art Institute of Chicago, Soldier Field and Old St. Patrick’s Church. Tourism Ireland created the “greenest city” campaign to get cities to light up landmarks around the world.

Read more about the “greenest city” effort on the Chicago Tribune website.