AMERICAN IMPRESSIONIST: CHILDE HASSAM AND THE ISLES OF SHOALS Hassam painted the rocky shoals of Appledore Island off the coast of Portsmouth, N.H., over three decades. The exhibition presents 40 oil paintings and related watercolors, all made between the late 1880s and 1912. Through Nov. 6. Peabody Essex Museum, East India Square, Salem. 978-745-9500. www.pem.org

CENTER FOR MAINE CONTEMPORARY ART A large new venue for contemporary art opens in Rockland with a series of exhibitions focused on, respectively: photographer and video artist Rollin Leonard; Alex Katz; Jonathan Borofsky (his “Human Structures,’’ pictured); Lauren Henkin; and Don Voisine. 21 Winter St., Rockland, Maine. 207-701-5005, www.cmcanow.org

EVERYWHEN: THE ETERNAL PRESENT IN INDIGENOUS ART FROM AUSTRALIA An overview of indigenous art from Australia, most of it made over the last 40 years. Through Sept. 18. Harvard Art Museums, 32 Quincy Street, Cambridge. 617-495-9400, www.harvardartmuseums.org

ALEX DA CORTE: FREE ROSES Installations, collage paintings, and, best of all, videos in bright colors with surreal, Pop-influenced imagery, by the talented young artist. Through January 2017. Massachusetts Museum of Contemporary Art, 1040 Mass MoCA Way, North Adams. 413-662-2111, www.massmoca.org SEBASTIAN SMEE