Building for children has once again become a hot topic for architects, particularly with the recent announcement of new laws aimed at improving the availability and quality of nursery schools. In recent years, no other building typology has changed and evolved more rapidly than educational facilities for children. Architectural solutions must go far beyond the structural aspects of the respective building: they must also ensure flexibility, safety, and accessibility and account for the current technical, ecological, and energy standards. This publication explores nursery schools and childcare facilities from an architectural perspective. The aim is to provide a cultural-historical account of the development of educational buildings for children, to define design tasks, and to formulate quality standards for play-learning architecture and environments.