Buckminster Fuller architectural prints. Richard Serra silkscreens. Works by Jenny Holzer, Bruce Nauman, Tara Donovan, and Ellsworth Kelly. Over the past 12 months, all have graced Barbara Krakow’s stark white walls. That caliber of contemporary and modern art would be the envy of many museums, but this little gallery manages to pull it in and keep it coming. Bonus: With its annual exhibition that raises tens of thousands for AIDS relief, the gallery is a good citizen as well.