In a viral Instagram video, travel vlogger Dylan Page takes viewers on a jaw-dropping tour of this extraordinary metropolis, showing just how surreal Chongqing's urban landscape truly is.

Today, my friend and I will try to find the true ground floor in Chongqing," the influencer ... The duo start at "street level" where cars can be seen driving and walk through a maze of shops ...

For comparison, the deepest tube station in London is Hampstead, which lies 58.5 metres below ground level – half the depth ...