Housseinou Gassama was born in Senegal and lived on the streets around Santa Maria del Mar at least between 2008 and 2012. He painted houses and furniture—everything he didn't have—on small tables he made by recycling wine crates from Vila Vinateca, and neighbors would buy them to give to him. But one day Gassama disappeared: a friend from a nearby restaurant said he had gone to Almería to meet with an uncle. No one has heard anything more about him. His works are sold in galleries in Paris and New York, and he is represented in the collection of the Centre Georges Pompidou, a result of the growing interest in outsider art. And now his work is back in the public eye alongside that of the Peruvian artist based in Paris, Alberto Quintanilla (Cusco, 1934), in an exhibition entitled Inner worlds to the Mater House Museum (Calle del Oli, 4), located in an old palace from the 11th and 12th centuries in the Ribera district of Barcelona.