Since its founding at the 1964-65 New York World’s Fair, the New York Hall of Science (NYSCI) has inspired millions of people—children, teachers, and families– by offering creative, participatory ways to learn and encouraging people to explore their curiosity and nurture their creativity. Located in Queens, the most ethnically diverse county in the country, NYSCI welcomes 500,000 visitors each year and serves thousands more through outreach in schools, teacher professional development, and participation in a variety of public events and research initiatives. NYSCI is a leader in the science museum field, recognized for its highly regarded exhibitions, programs, and products, all of which are informed by strategies of engagement called Design, Make, Play. The defining characteristics of Design, Make, Play — open-ended exploration, imaginative learning, personal relevance, deep engagement, and delight — are the ingredients that inspire passionate science, technology, engineering, and mathematics (STEM) learners. NYSCI engages diverse communities of learners, particularly young people, in STEM, by fostering the excitement of self-directed exploration and by tapping into the joy of learning intrinsic in young people’s play. Our transformative model for STEM exploration invites broad participation and makes engagement and learning irresistible. NYSCI has approximately 80 full-time and over 65 part-time staff members.