In a cramped old row house near the Denver Art Museum, Hugo Anderson has opened the quirky Emil Nelson Gallery. The inventory ranges from historic pieces, including things from Anderson's family's collections, to new works, some of it by his friends. The late Herbert Bayer, Colorado's most famous artist, was both an artist collected by the family and a friend of theirs, which is how this modest place was able to put on the spectacular herbert bayer remembered. The retrospective of the modern master's accomplishments began with pieces Bayer did in Germany and ended with those created after he fled the Nazis and wound up in Aspen.