I often go out with my camera on foggy mornings in Seattle looking for just this kind of shot (but rarely getting it) - a moody play of darks and lights over the downtown skyline and the waterfront.

Camera: Sony DSC-RX100 with integrated lens.
ISO: 125
Aperture: f/11
Speed: 1/1250 sec
Focal Length: 23mm

Edited, cropped and converted to black and white in Photoshop.