The world’s largest underground floodwater protection system, a colossal underground flood tank aimed to shield Tokyo from ...

The Japanese government has released a Minecraft map modeled after one of its most renowned facilities.

The Metropolitan Outer Area Underground Discharge Channel is a unique feat of engineering built to keep homes and businesses safe and dry. Its dramatic pressure-adjusting water tank, known as the ...

The G-Cans project, more officially known as the Metropolitan Area Outer Underground Discharge Channel, is a massive underground waterway and water storage area built to protect Tokyo from ...

Download a free Minecraft map of Tokyo’s G-Cans flood prevention system, created by Japan’s government to showcase this ...

This enormous, cathedral-like building is the main water tank of the Metropolitan Area Outer Underground Discharge Channel facility in Kasukabe City, 19 miles north of Tokyo, Japan, which is one ...

Despite the highly technical name, the Metropolitan Area Outer Underground Discharge Channel is basically a giant hole in the ground. Oh sure, the enormous concrete labyrinth houses the gargantuan ...

The massive underground flood diversion project ... Nobuyuki Akiyama told CBS News that the multibillion-dollar "Metropolitan Area Outer Floodway," in Saitama Prefecture, north of Tokyo, has ...

People can visit the flood protection facility in Kasukabe, which safeguards Tokyo and has shafts large enough to fit the ...

These are just some of the joys of touring the Metropolitan Area Outer Underground Discharge Channel, ostensibly a critical part of the capital region’s defenses against severe weather events ...

One such spot is the otherworldly Metropolitan Area Outer Underground Discharge Channel in Kasukabe, Saitama prefecture. Affectionately known as the Disaster Prevention Underground Temple ...