Spectre of the Brocken
The shadow a person casts on a fog bank is called ‘spectre of the Brocken’. It is often accompanied by a glory and a fogbow. It is named after the Brocken, a peak in the German Harz mountains where it can often be seen.

Spectre of the Brocken and Glory at night with thick fog. The light in the background is caused by a strong halogen lamp at my back. Fuji Finepix S2 Pro digital SLR, 15 seconds at f/4.0, 200 ISO, processed with Adobe Photoshop Elements.
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