Place is the most fundamental concept in architecture and is a necessity of architectural design, and since we face changes in our understanding of place notion in the modern era which have had distinctly profound and sometimes unpleasant effects on modern and subsequent designs- in a way that architecture has largely neglected its primary task of making the noble place of human life, and its responsibility in human dwelling dimension- in order to find the roots of the evolution in place (...) nature and its meaning, we will answer these two question: what the concept of place has been for ancient thinkers? What have been the reasons for changing the understanding of place in the modern era? How these changes have affected the understanding of place in modern architecture? and yet we will try to understand the concepts of place in ancient Greece (as the origin of western thoughts especially modern thinking) versus the modern, and finally the main findings of this study are the massive semantic transformation of place in modern age and its replacement by space in modern architecture design which mainly is the result of major attention paid to the extendedness of place, the emergence of functionalism in degradation of place, and the commercialization of place. (shrink)