A qualitative study of children's museums' successful inquiry-based learning environments is described, focusing on four students with various exceptional learning needs. Benefits for the students in terms of scaffolded instruction, meaningful and contextualized activities, self-regulated learning, the establishment of learning communities, play, and parental involvement are noted. A discussion of the generalization of learning to the classroom and of positive attitudes and children's museums as inclusive, supplemental environments is included. Implications for future practice involve school-museum partnerships and individualized programming for all learners.