Discovery Museum is a hands-on museum for families that blends science, nature, and play, located in Acton, Massachusetts, United States. After an $8.8M expansion and renovation, the museum reopened in March 2018 as a 16,000 sq ft (1,500 m2), accessible, single-building museum; a 550 sq ft (51 m2) tree house and accessible nature playscape were added to the campus in July 2016. The museum was originally founded in 1982.