Title: Expanding horizons
Subjects: Expositions, Exhibitions, Peinture de paysages américaine, Peinture de paysages canadienne, American Landscape painting, Landscape photography, Photographie de paysages, Canadian Landscape painting, Photography, History, In art, Pictorial works
Places: United States, Canada, États-Unis
Time periods: 19e siècle, 20th century, 20e siècle, 19th century