One of the interesting things I find about shooting in the winter is that I end up with many more black and white or monochrome images then I do in the Summer. To me this just comes logically. With snow covering the the ground and on semi-overcast days there already is a lot of grey and white in the image. Switching to monochrome brings out the contrast in the scene which can sometimes really bring out its mood. This is the general theme in the two images below. The first one is of the Rideau Locks leading up to the Rideau Canal and the Second is of the the Alexandra Bridge and the way the barrier frames the Parliament building.
Rideau Lock System
Alexandra Bridge and the Parliament Building