There was quite a fetish for referencing Canadian history and using local materials in Toronto architecture the '30s and '40s - two sorts of Ontario limestone, marble from Bancroft, and carved figures on the outside of the 1933 wing of the ROM, and the iconography in the hall of the Bank of Nova Scotia building at King and Bay, for instance. Artists went Canadian, rather than lifting European classical themes.
Less so now, though - the new AGO building uses blue Japanese titanium and Douglas fir glulam from B.C. ... and the ROM is clad in German aluminum. But the results are ours, all ours.