Jan Asselijn, The Threatened Swan, c. 1650, oil on canvas, h 144cm × w 171cm. On view indefinitely at The Rijksmuseum, Amsterdam.

Wagner Malta Tavares, Turbulence, 2014, installation, photo projection, subwoofer and mirror. On view through November 16 as part of an exhibition displaying finalists for PIPA 2014 (the most important prize in contemporary Brazilian art) at Museu de Arte Moderna, Rio de Janeiro.

Rudolf Staffel, Light Gatherer, translucent porcelain, hand-built over a balloon form, 5 1/2 x 8 in, 14 x 20.3 cm. On view through October 25 as part of "White Magic: Robert Ryman, Rudolf Staffel" at David Nolan Gallery, New York. 

Agnes Martin, Untitled #2, 1977, India ink, graphite, and gesso on canvas, 72 x 72 in. On view indefinitely at The Museum of Contemporary Art, Los Angeles.