“How Green Was My Valley” is a cityscape observation work about Seoul where I was born and grown up. Seoul, the capital of South Korea since the 14th century has undergone chaotic modernization through historical vicissitude; colonization, war, dictatorship, military regime, democratic revolution, and urbanization. The identity of the city has never defined by one word clearly but mixed up. Chaos, passions, pressure, competition, solitude, isolation. These are parts of the character of Seoul. This body of work is an eloquent study of remains; an elegy for traces, emptiness, fragmented memories, beauties out of destructed and abandoned places, lives once existed. This ongoing project is also a political and social geography study of the metropolis; a requiem for urban milieu, urbanization, destructive development, conflicts and chaos that keep feeding the city. These two pillars, two narrative streams collide and intermix with each other seeking for an answer to a question: Who changes the change of the city for whom, for what? Then who has authority to deal with the life of the city and lives in it?