AN AMERICAN IN LONDON: WHISTLER AND THE THAMES Printings, paintings, and drawings from a key period in Whistler’s career, as he focused on subjects in Battersea and on the Thames. Through April 13. Addison Gallery of American Art, Andover. 978-749-4015, www.andover.edu/Museums/Addison
WILLIAM KENTRIDGE: THE REFUSAL OF TIME A 30-minute, five-channel video installation (pictured) by the South African artist, providing a meditation on the pressure of time and the attempt — political and existential — to escape it. A collaboration with Philip Miller, Catherine Meyburgh, and Peter Galison. Complemented by a selection of Kentridge’s works on paper. Through May 4. Institute of Contemporary Art. 617-478-3100, www.icaboston.org
JOHN BISBEE: NEW BLOOMS Large-scale, floral-inspired sculptures made from twisted and welded nails by Bisbee, a sculptor-in-residence at Bowdoin College in Maine. Through May 26. Shelburne Museum, Shelburne, Vt. 802-985-3346, www.shelburnemuseum.org
JEFFU WARMOUTH: NO MORE FUNNY STUFF A midcareer retrospective of the Massachusetts artist, who favors parody, puns, and absurdist humor. Through June 1. Fitchburg Art Museum, Fitchburg. 978-345-4207, www.fitchburgartmuseum.orgSebastian Smee can be reached at firstname.lastname@example.org.