Play Union

Assembly Row indoor LEGO attraction with rides, build zones, a DUPLO park, parties, and timed-ticket entry.

Major hands-on children's museum on Boston's waterfront with PlaySpace for ages birth to 3, interactive exhibits, family programs, and memberships.

Space-themed West Roxbury indoor playground with a large climbing structure, toddler zone, ball pits, role play, memberships, and parties.

Chelsea indoor playground with weekday open play, climbing and active play features, and private birthday parties seven days a week.

Carefully designed Medford playspace for ages 0-6 with sensory play, climbing, crafts, classes, and reservation-based open play.

Therapist-designed Woburn open play gym for ages 0-6 with climbing, sensory play, memberships, and inclusive sessions.