A crazy multi-layered city is home the the deepest underground in the world. Chongqing in China is known as 'The 8D City' due to its complex, multi-dimensional urban layout, which creates a ...

The world's deepest underground city is a mind-boggling multi-tiered metropolis. Chongqing in China, dubbed 'The 8D City', is probably one of the craziest cities you'll ever go to. It boasts an ...

Due to its mountainous terrain, the city's buildings have multiple ground floors as part of a multi-layered urban environment where trains and buses run on roads which are built in the air.

A city in China is known as 'The 8D City' due it's multi-layered construction, with trains rushing through buildings and the deepest underground system in the world ...