The architectural structures of Nature

Mr. Ron Neumeyer Delta, Canada Specimen: Blowfly Proboscis Technique: Brightfield
Is it a dome?

I remember one of our colleague professors had a picture in the bathroom, beautiful illustrations of a fly, a floor plan, cross sections, elevations. I've been always delighted with it.

Because, though the flies are absolutely nasty and ugly, there's the beauty of the structure of nature, and most interesting, its representation as an architectural drawing.

A few days ago, I came across with the gallery of Olympus Bioscapes (link below) and thought that organicism in its most complex forms is a fashion in architectural concepts and competitions, not all of them can be built, but, on the contrary, nature has its own architectural forms, let's see some examples. 

Mr. Piotr Rotkiewicz San Diego, CA, USA Specimen: Fossil Skeleton of Polycystine Radiolaria Technique: Darkfield Illumination
Is it a tower?

Mr. Harry Taylor Kensworth, Dunstable, Bedfordshire, UK Specimen: Dahlia flowerhead Technique: Brightfield (in reverse), 50x Objective
Is it a spiraled Pantheon?

http://www.olympusbioscapes.com/gallery/2012/