This article analyzes the structure of the concept “Thames” in the literary and regional bestseller of Peter Ackroyd "Thames: Sacred River” as the general cognitive-matrix model that represents the cognitive structure of the whole work. Besides, the concept “Thames” is analyzed within the theory of egocentric categorization of space in language as means of world interpretation. In that aspect, the concept “Thames” is considered as an image of the surrounding space reflected by the creative consciousness of the author. The cognitive-matrix model and space- categorization model assist to disclose the integration of the linguo-country and linguo-cultural cognitive components of the complex concept “Thames” in their dialectic interrelation and interaction as cognitive means of synthesis of Reality and Unreality, dialectics of Space - Time - Continuum in Peter Ackroyd’s work.