A video on Japan’s ‘Parthenon’, a massive underground complex built in Tokyo for flood control
The underground ‘Parthenon’ in Japan is a cavernous complex for protecting Tokyo and surrounding areas from catastrophic flooding. It was built in 2006 at a cost of 230 billion yen ($2.2 billion).
This immense structure funnels away and redirects excess water from storm snd typhoons to the Kasukabe flood tank. This is the largest facility of its kind in the world.