We visited the world’s largest Storm Water Discharge Tunnel which prevents flooding disasters. A giant tunnel connects many small rivers with Edo River, Tokyo's major river, helping to reduce a potential overflow into residential areas during major storms. The tunnel was HUGE! It is also know as Underground Temple.
This is a mega-microblog of a master student @ obuchi lab university of tokyo. G30 Architecture & Urbanism University of Tokyo @ Archinect: http://archinect.com/schools/cover/28188564/university-of-tokyo-g30-architecture-and-urbanism