—This paper is an exhibition of graph matching results, in a classification context. We present Photo(Graph) Gallery, a platform that allows one to visually interpret graph matchings. We aim at understanding the computed matchings in order to improve the rates of graph classification. Preliminary results of the study performed on two data sets are also illustrated. Furthermore, a demonstrator of our proof-of-concept platform is available online at http://rfai.li.univ-tours.fr/PublicData/phogg/.