Suomenlinnan Muuri (Suomenlinna wall).
Soumenlinna, Helsinki, Finland.
Image: GrrlScientist, 19 July 2009 [larger view].
This image makes me wonder about the bricks that were (obviously!) added much later to this lovely rock wall: why were they added? Who added them and why? What did those people think about what they saw while they were adding these bricks?