Have you ever seen such architecture in the shell of a snail?
This is a land snail species endemic to Cuba, Blaesospira echinus infernalis (Pomatiidae), photographed in Pinar del Rio, Viñales, Sierra de la Penitencia, Cuba.
OMG!! looks like Helioceras ammonite !!!!
I had no idea any land snail in the world was this elaborate, or that any snail at all still had this kind of loose corkscrew!