photomural

pho·to·mu·ral

P0265800 (fō′tō-myo͝or′əl)n. A greatly enlarged photograph or series of photographs placed on a wall especially as decoration.
pho′to·mu′ral·ist n.

photomural

(ˌfəʊtəʊˈmjʊərəl) n (Art Terms) a decoration covering all or part of a wall consisting of a single enlarged photograph or a montage