Hauser and Wirth Los Angeles adds to the PST mix with its exhibition of Building Materials: Process and Form in Brazilian Art. Time and again I see that more than its neighbors, Brazil was  in the avant garde of art, architecture, design and performance. Two examples of Brutalist concrete art especially struck my eye, one by Erika Verzutti and one by Monika Sosnowska that hark back to the the extruded concrete of Frank Lloyd Wright and Neutra but also to the early temples and monuments to the gods. Sosnowska's piece is embedded with door handles--to another life?