The Rio Grande do Sul Museum of Art (in Portuguese: Museu de Arte do Rio Grande do Sul Ado Malagoli - MARGS) is an art museum in the State of Rio Grande do Sul. It is located in the centre of Porto Alegre. Its eclectic building, national heritage, is one of the most noteworthy historic buildings in Porto Alegre. Its design is usually attributed to Theodor Wiederspahn, a German-Brazilian architect, although important local historian and artist Fernando Corona ascribes it to Germano Gundlach.