This article attempts to “objectify” and conceptualize the concept of “Eurasia”, determine its ontological characteristics as the sociopolitical space of development of the Russian civilizational project, as well as delineates the contours of this space within the framework of a project-constructive methodological orientation. The author refers to the history of formation of holistic representations on Eurasia within the scientific thought, giving special attention to the contribution of geopoliticians, and emphasizing the implementation of theoretical provisions in real politics. The empirical basis relies on the two megaprojects that are implemented in practice: the Silk Road Economic Belt initiated by China and the Eurasian Economic Union (which includes Armenia, Belarus, Kyrgyzstan, Kazakhstan, and Russia), as well as the “Greater Eurasia” as a potential way of their interlink and development of the space for cross-civilizational dialogue on the continent. The main conclusions are as follows: 1) Eurasia is determined both as the goal of the Russian project of civilizational development and as the space it can be realized within. At the same time, the space for the development of Russia-Eurasia is described as the natural environment of the Russian civilizational project, the space of the “primary circle”. Special role is played by the creation and development of the Eurasian Economic Union, which unites the countries that have faced the escalation of nationalist sentiment after the dissolution of the Soviet Union; 2) The “Greater Eurasia” is designated as the “secondary circle” of the Russian civilizational project, a space for continental cooperation, determines by new political reality. 3) Certain zones of civilizational confrontation and contradictions on the continent have been identified. The author believes that the need for conceptualization of the concept at hand lies in the significant sociopolitical formative potential.