The condition of colonialism has always been intertwined with Horror: “How hungrily empire feeds upon the substance of those whose life it requires to live and to thrive,” Elleke Boehmer has observed, while Achille Mbembe speaks of how “to live under late modern occupation is to experience a permanent condition of ‘being in pain.’” Likewise, America’s violent history of conflict between so-called forces of ‘civilization’ and ‘savagery’ have generated a rich body of cultural representations that use the figures, images, and emotional atmosphere of Horror. This chapter offers an incisive account of this history, one which connects the Puritan confrontation with a wilderness populated by natives who, in 1630, William Bradford called “willd men,” to the tortured, torturing images of American imperial actions in the twenty-first century reflected in popular fiction, film, and video games. This chapter will range across high and popular culture to survey the horrific topographies of American empire, found in everything from the early settler narrative of Mary Rowlandson, through the ‘weird west’ of Cormac McCarthy, to the looming presence of US occupying forces in Hassan Blasim’s The Corpse Exhibition (2014) or Ahmed Saadawi’s Frankenstein in Baghdad (2018).