Staying With The Underground Theme

Sunday, 5 May 2013, 20:41 | Category : Architecture, Underground, Urban Exploration
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Some sort of ancient temple, maybe? Or the set of a science-fiction movie? Actually, it’s part of a massive underground stormwater system in Tokyo. And when I say massive, that’s exactly what I mean: “five 32m diameter, 65m deep concrete containment silos, connected by 64 kilometers of tunnels 50 meters deep underground”. In times of heavy rains and swollen rivers (Tokyo has several), the city can pump 200 tons of water every second with huge turbines like this: