Casa Grande Union High School - Casa Grande Union High School is a high school in Casa Grande Arizona. It is part of the Casa Grande Union High School District.The original high school and gym now used as the Casa Grande city hall are listed on the National Register of Historic Places. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Educational Institution