Founded in 1900 by a group of private citizens as the Art Museum of Toronto, the Art Gallery of Ontario is one of the largest art museums in North America, with a physical facility of 583,000 square feet. The AGO expanded it facility in 2008 with an innovative architectural design by world-renowned architect Frank Gehry. The AGO holds more than 80,000, works in its collection, which spans from 100 A.D. to the present.