Wilco’s Solid Sound Festival is a 3-day celebration of music, comedy, art and more in North Adams, MA in the bucolic Berkshires. Envisioned by Wilco and presented in collaboration with the Massachusetts Museum of Contemporary Art, the festival takes over the vast MASS MoCA 19th-century factory campus for the entire weekend of June 26-28, 2015. Kids 7-10 are $50 for the weekend. Kids under 6 are free.