Wednesday, Feb. 24, 2016 12 a.m. to 11:59 p.m. Location: College of the Atlantic, 105 Eden St., Bar Harbor, ME For more information: 2078015620; coa.edu/24hourchallenge College of the Atlantic’s annual fundraising blitz seeks to raise 750 gifts in 24 hours. If the challenge is met, an anonymous donor will contribute …