For a long period of time, spatial design has been seen as an action that could be performed by people, and for people only. Today, as some of the most meaningful projects of our times seem to challenge this concept, qualitative research still struggles to emerge. This book collects, reconstructs, and discusses archetypal models of posthuman architecture, from the cabin of Henry David Thoreau to the Svalbard Global Seed Vault. This book aims to show how architectural, landscape, and industrial designers, be they professional practitioners or not, redefined their tools in order to meet the functional and symbolic needs of new and different kinds of subjects. All this in ten monographic architectural tales, thought to trace the evolution of an extended idea of coexistence between humans and other species or technologies.