Best Summer Internship Choice?

<p>I'm currently a Freshman looking to double major in Art History and Psychology. Work possibilities this summer have been limited and I need some advice. I have the opportunity to work at a local office (Portland, Or) for US Senator Ron Wyden or I could do volunteer work at the Portland art museum and take a few summer classes. I don't feel the senatorial internship does much for my resume and academic focuses. I'm really geared towards Art History and Arts Administration, but have also considered marketing/advertising and PR as career choices. Any advice, ideas, suggestions?</p>