Fingal's Cave in Staffa, Scotland featuring hexagonally-jointed basalt columns.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...s_fullsize.jpg
Previously:
Black Crack fissure - photo and video
Al Naslaa split rock formation - photo
Kummakivi balancing rock - photos
Hedgehog natural rock formation - photo
Natural conical hill - photo
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