MASS MoCA sprawls over 13 acres of downtown North Adams – one-third of the entire business district. After the Sprague Electric Company closed in 1985, some $31 million was spent to modernize the property into 'the largest gallery in the United States.' The museum encompasses 222,000 sq ft in 25 buildings, including art construction areas, performance centers and 19 galleries. Long-term exhibitions include a gallery of wall paintings by Sol LeWitt. Thought-provoking guided tours run daily at 1pm and 3pm.