The Art Wall Gallery, which is located on the Letná park wall along the Vltava River embankment, was established by the Center for Contemporary Arts in 2005 with the aim of revitilizing public space and encouraging debate about what is "public art". The frames that now host the Art Wall Gallery were built into the walls in the early 1950s, just under the former Stalin monument, and originally served as a showcase for communist propaganda posters.
One of the main goals of the Center for Contemporary Arts, Prague is to support the social impact of works of art and public art as it is defined by Patricia C. Philips (chief-editor of Art Journal): "Public art is not public because it is exhibited outdoors ... but because it is art for which the understanding of "public" is an ongoing process, the genesis and subject of inquiry and analysis."