Visual essay The article including collages of historical photographs treats about the phenomenon of playgrounds. The essay was published in RZUT Kwartalnik Architektoniczny +25: ZABAWA (3) 2020. Intro: "It seems that what distinguishes today's playgrounds from those of the previous century is the belief in the power of children's imagination. The idea itself is a response to the legal restriction of the work of minors in the 19th century and the emergence of the "problem of free time". Playgrounds, their forms and materials used, changed throughout the previous century. They were treated as inseparable parts of the urban planning of a larger scale, cityscape, landscape or housing estates. Artists, sculptors, painters and architects were responsible for their projects, so they were often elements of functional art. "