Fire crews responded Wednesday morning to a blaze in a two-story structure along Highway 12 between Santa Rosa and Sebastopol. Flames were visible from the upper level of the two-story structure when firefighters arrived just before 11:30 a.m., according to Sonoma County Fire District spokesperson Karen Hancock. The top floor appeared to be a Quonset hut — a curved, metal structure shaped like a half circle — sitting above a lower level made of cinder blocks. Tap the link in our bio to read more