POUGHKEEPSIE The Franklin Delano Roosevelt Mid-Hudson Bridge “Bridge Music,” sound installation by Joseph Bertolozzi. Through Oct. 31. Dawn to dusk. The Franklin Delano Roosevelt Mid-Hudson Bridge. josephbertolozzi.com.

POUGHKEEPSIE Vassar College, Frances Lehman Loeb Art Center “Punctuating Space: The Prints and Multiples of Richard Artschwager.” Through Sept. 6. Tuesdays, Wednesdays, Fridays and Saturdays, 10 a.m. to 5 p.m.; Thursdays, 10 a.m. to 9 p.m.; Sundays, 1 to 5 p.m. Vassar College, Frances Lehman Loeb Art Center, 124 Raymond Avenue. 845-437-5632; fllac.vassar.edu.

POUND RIDGE Pound Ridge Public Library “SheilArt,” works by Sheila Mancini. Aug. 29 through Oct. 10. Tuesdays and Thursdays, 10 a.m. to 8 p.m.; Wednesdays, Fridays and Saturdays; 10 a.m. to 5 p.m.; Sundays, noon to 5 p.m. Pound Ridge Public Library, 271 Westchester Avenue. poundridgelibrary.org; 914-764-5085.

PURCHASE Neuberger Museum of Art of Purchase College “Plastic: Art in an Era of Material Innovation.” Through Aug. 23. “Gold,” group show. “Teresa Margolles: We Have a Common Thread.” Through Oct. 11. $3 and $5; members and children 12 and under, free. Tuesdays through Sundays, noon to 5 p.m. Neuberger Museum of Art of Purchase College, 735 Anderson Hill Road. www.neuberger.org; 914-251-6100.

RHINEBECK Montgomery Row Second Level “Photographic Solarizations,” photographs by William Lulow. Through Sept. 30. Daily, 9 a.m. to 6 p.m. Montgomery Row Second Level, 6423 Montgomery Street. 845-876-0543; montgomeryrow.com.

RHINECLIFF Morton Memorial Library “The Art Show,” Benjamin Clinton Partrick. Through Aug. 29. Tuesdays, 2 to 6 p.m.; Wednesdays, 2 to 7 p.m.; Thursdays and Fridays, 9 a.m. to 12:30 p.m. and 2 to 6 p.m.; Saturdays, 9:30 a.m. to 12:30 p.m. Morton Memorial Library, 82 Kelly Street. 845-876-2903; morton.rhinecliff.lib.ny.us.

RIVERDALE Gallery 18, Riverdale Y “A Path to Plenty,” acrylic paintings by Joyce Dutka. Through Aug. 28. Sundays through Thursdays, 9 a.m. to 9 p.m.; Fridays, 9 a.m. to 4 p.m. Gallery 18, Riverdale Y, 5625 Arlington Avenue. riverdaley.org; 718-548-8200.