Multi Hued Kuggen Building

Kuggen, an office building in Gothenburg, Sweden is coated in bold shades of red and unlike any sustainable building you've ever seen before. Inspired by both cog wheels (kuggen means cog) and the saw-toothed edge of a leaf, the circular building was designed by Winngårdh Arkitektkontor and is composed of six floors each skewed to the south to provide shade for the floor below. [Source]