Classes began for Auburn students on Wednesday.

Auburn High School opened its doors to new rooms and gymnasiums, part of the completed Phase 2 of the $110 million high school project.

Between the Performing Arts Center and the Automotive Technology Building, the second of the three phases of the high school’s redo is something to see. In its 109,000-square-foot embrace, Phase 2 enfolds three gymnasiums: a cavernous main, already festooned with banners attesting to the school’s past and present sports greatness; a smaller auxiliary gym; and a wrestling gym.