The Montreal Botanical Garden (Jardin botanique de Montréal) is a large botanical garden in Montreal, Quebec, Canada comprising 75 hectares (190 acres) of thematic gardens and greenhouses. It was designated a National Historic Site of Canada in 2008 as it is considered to be one of the most important botanical gardens in the world due to the extent of its collections and facilities. The garden was founded in 1931, in the height of the Great Depression, by mayor Camillien Houde, after years of campaigning by Brother Marie-Victorin. The grounds were designed by Henry Teuscher, while the Art Deco style administration building was designed by architect Lucien F. Kéroack. It serves to educate the public in general and students of horticulture in particular, as well as to conserve endangered plant species.