In the Greek Classical period, the symposium—the social gathering at which male citizens gathered to drink wine and engage in conversation—was held in a room called the andron. From couches set up around the perimeter of the andron, symposiasts looked inward to the room’s center, which often was decorated with a pebble mosaic floor. These mosaics provided visual treats for the guests, presenting them with images of mythological scenes, exotic flora, dangerous beasts, hunting parties, or the specter of Dionysos, the god of wine, riding in his chariot or on the back of a panther. This book takes as its subject these mosaics and the context of their viewing. Relying on discourses in the sociology and anthropology of space, it argues that the andron’s mosaic imagery actively contributed to a complex, metaphorical experience of the symposium. In combination with the ritualized circling of the wine cup from couch to couch around the room and the physiological reaction to wine, the images of mosaic floors called to mind other images, spaces, or experiences, and, in doing so, prompted drinkers to reimagine the symposium as another kind of event—a nautical voyage, a journey to a foreign land, the circling heavens or a choral dance, or the luxury of an abundant past. Such spatial metaphors helped to forge the intimate bonds of friendship that are the ideal result of the symposium and that make up the political and social fabric of the Greek polis.