Taking a secular humanist approach towards the Seven Deadly Sins, the project examines seven geometric primitives (cone, cylinder, wedge, sphere, torus, cube, and pyramid) through the lens of the seven capital vices (lust, gluttony, greed, sloth, wrath, envy, and pride). Historically, the Seven Deadly Sins provided potent source material in art, literature, and film; the dark content often rendered satirically playful, both visually in painted scenes as well as through elaborately exaggerative narratives. The study looks at the city of Manchester and extracts the design transgressions scattered across the city’s fabric. In short, A Landscape of Sin projects on the architectural impetus that occurs when pure geometry meets the morally impure.