A city in China is known as 'The 8D City' due it's multi-layered construction, with trains rushing through buildings and the ...
DuKai photographer/Moment/Getty Images Chongqing, one of China’s lesser known megacities, is easily one of the maddest places ...
At Hongyancun Station in Chongqing, the station is so deep underground ... in London that exceed 200 metres. Its multi-level layout means that many people, especially tourists, struggle to ...