Very nice! Actually not seen that one, but it seems eerily similar - even the height of it!
These are Hyperboloid towers, they have a hyperbola profile and can be formed from straight elements, set at an angle in a circular array (hence their popularity). Actually cooling towers in coal fired power stations have a hyperboloid shape as the formwork can be made from straight elements. So it's a low cost way to make a doubly curved surface that helps mitigate buckling in compression shells. Great find though! Denmark is my favourite country too.
Have a great race Jonah. Hope it goes well, no glitches this year