Art Gallery of Ontario. The Art Gallery of Ontario is an art museum in Toronto, Ontario, Canada. The museum is located in the Grange Park neighbourhood of downtown Toronto, on Dundas Street West between McCaul and Beverley Streets. Its collection includes over 98,000 works spanning the first century to the present day. The museum collection includes a number works from Canadian, First Nations, Inuit, African, European, and Oceanic artists. In addition to exhibits for its collection, the museum has organized and hosted a number of travelling arts exhibitions. The museum's building complex takes up 45,000 square metres of physical space, making it one of the largest art museums in North America. The institution was established in 1900 as the Art Museum of Toronto, and formally incorporated in 1903. It was renamed to the Art Gallery of Toronto in 1919, before it adopted its present name, the Art Gallery of Ontario, in 1966. The museum acquired the Grange in 1911, and later undertook several expansions to the north and west of the structure. The first series of expansions occurred in 1918, 1924, and 1935, designed by Darling and Pearson. Since 1974, the gallery has undergone four major expansions and renovations. These expansions occurred in 1974 and 1977 by John C. Parkin, and 1993 by Barton Myers and KPMB Architects. From 2004 to 2008, the museum underwent another expansion by Frank Gehry. The museum complex saw further renovations in the 2010s by KPMB, and Hariri Pontarini Architects. In addition to display galleries, the museum houses a library, learning spaces, gallery workshop space, an artist-in-residence office and studio, cafe, espresso bar, research centre, theatre and lecture hall, a restaurant, gift shop, and an event space called Baillie Court, which occupies the entirety of the third floor of the south tower. The museum was founded in 1900 as the Art Museum of Toronto by a group of private citizens and members of the Toronto Society of Arts. The institution's founders included George A. Cox, Lady Eaton, Sir Joseph W. Flavelle, J. W. L. Forster, E. F. B. Johnston, Sir William Mackenzie, Hart A. Massey, Prof. James Mavor, F. Nicholls, Sir Edmund Osler, Sir Henry M. Pellatt, George Agnew Reid, Byron Edmund Walker, Mrs. H. D. Warren, E.R. Wood, and Frank P. Wood. The museum's incorporation was confirmed by the provincial government three years later by legislation, An Act respecting the Art Museum of Toronto in 1903. The legislation provided the museum with expropriation powers in order to acquire land for the museum. Before the museum moved into a permanent location, it held exhibitions in rented spaces belonging to the Toronto Public Library near the intersection of Brunswick Avenue and College Street. The museum acquired the property it presently occupies shortly after the death of Harriet Boulton Smith in 1909, when she bequeathed her historic 1817 Georgian manor, The Grange, to the gallery upon her death. However, exhibitions continued to be held in the rented spaces at the Toronto Public Library branch until June 1913, when The Grange was formally opened as the art museum. In 1911, ownership of The Grange, and the surrounding property was formally transferred to the museum, after an agreement was signed with the City of Toronto government to maintain the surrounding grounds as a municipal park. In 1916, the museum drafted plans to construct a small portion of a new gallery building designed by Darling and Pearson in the Beaux-Arts style. Excavation of the new facility began in 1916. The first galleries adjacent to The Grange were opened in 1918. In the next year, the museum was renamed the Art Gallery of Toronto, in an effort to avoid confusion with the Royal Ontario Museum. In 1920, the museum also allowed the Ontario College of Art to construct a building on the grounds. The museum was expanded again in 1924, with the opening of the museum's sculpture court, its two adjacent galleries, and its main entrance on Dundas Street. The museum was expanded again in 1935 with the construction of two additional galleries. Portions of the 1935 expansions were financed by Eaton's. In 1965, the museum saw its collection of European and Canadian artworks expand, with the acquisition of 340 works from the Canadian National Exhibition. In 1966, the museum changed its name to the Art Gallery of Ontario, in order to reflect its new mandate to serve as the province's art gallery. In 1974, the museum expanded its gallery space when it opened the Moore Centre.