The Minnesota Museum of the Mississippi and Other Natural Wonders has a fascinating photo essay on stone face simulacra. In Fortean terms, simulacra photos depict "spontaneous or natural figures or images. Pareidoliacs rejoice!
Seen here:
Old Man of the Mountains
Franconia Notch, N.H.
The State symbol located 1200 ft. above Profile Lake. A natural profile from the cliffs of Canon Mtn., 5 layers of rocks make up the profile, 40 ft. high and 25 ft. wide.
Previously on BB:
• Fortean photography Link
• Tree with a face Link
UPDATE: It's been pointed out in the comments that the Old Man of the Mountain collapsed in 2003. How sad. Link