I love fascinating and unique places. This one is impressive:
The G-Cans Underground Temple in Saitama, Japan is probably the largest undergroun flood management system in the world. It is comprised of miles of concrete tunnels connecting five huge silos and one immense water tank, known as The Temple. The complex spans between Showa in Tokyo to Kusakabe in Saitama, with the power to pump 200 tons of water per second into the Edogawa River.
Here are some photos of The Temple
. Take a peek!