It’s a major year for the arts in Minnesota’s Twin Cities, and not a bad year for construction companies, either. The Guthrie Theater is putting the finishing touches on a massive new riverfront home designed by architect Jean Nouvel, and major expansion projects are well underway at the Walker Art Center, the Children’s Theatre Company, and the Minneapolis Institute of the Arts. “Most of the institutions are expanding their missions or reaching for new audiences with their new facilities. And all are trying to redefine what it means to be a home for the arts.”