Napa Valley artist Gordon Huether has become famous for his large-scale sculptures and works of public art made of metal and glass. In recent years, he has “downsized,” focusing on smaller-size projects with fine detail. His design studio, gallery, and fabrication facilities are in the Hay Barn, which is open to the public for self-guided tours Monday through Friday. All visitors are guaranteed a peek at some of Huether’s work: a giant hand holding a (giant) ping-pong ball or a mountain of chairs. Depending on when you visit, you also might see Huether and his team fabricating pieces for an upcoming installation.