As written earlier I did not stay long in Quebec City, but read more about it and wanted to visit it. So on my way back I passed it again. I would not have missed it, very nice city. It is rather French European and is partly developed on a hill, which gives a magnificent view over the St. Lawrence, from where the citadel is located.
Especially the Chateu Frontenac cannot be missed.

On the way North I passed Thetford Mines, an anormous complex of mines, and ended up at the foot of Mont Orford (below view from my bedroom), near Montreal.