On A Clear Day, while approaching Calgary International Airport from the south, you'll see in a farmer's field what looks like a dozen derelict World War II Avro Anson trainers arranged in a huge circle. "They're a metaphor for life," says University of Alberta art i professor Keith Harder. "They say a lot about death and dying, about gravity." His art installation, "Gravitas," is visible only from above and is inaccessible to the public.
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