Have you ever considered how architecture impacts humanity and global ecosystems, as an integrated context? Terrestrial Architecture dives deep into the concepts of environmental design and large-scale architecture, exploring the future of our biological systems at critical scales. Through the frameworks of geometry, geospatial modeling, and philosophy the book outlines the sacred relationship of design and computation with the biosphere. By analyzing ecological and biological systems, we can better comprehend the nature of creation and imagine particular futures for our cities, our ecologies, and our planet as a whole. Terrestrial Architecture outlines opportunities to engage in the transformation of our environments through techniques of design, visualization, and collaborative thinking, providing space for all to have agency in our Earth's evolution.