Space and space-time are depicted as physical objects, which are perceived, observed and studied via studuing various physical phenomena. These studies generated theories of physical and geometic phenomena and constitute a kind of integral knowledge which includes differential geometry, classical mechanics and mathematical physics. This book exposes an attempt to represent this knowledge as a whole. Differential geometry is outlined from ground level to Gauss-Bonnet-Chern theorem, classical physical theories, including general relativity are exposed in the same manner. Besides, the book exposes the author''s results on gravitational field of rotating material disk in general relativity, laws of motion of spinning particle, electromagnetic wave propagation in curved space-time and new non- relativistic limit of general relativity, other than Newtonian theory.