Violet Du Feng's documentary "The Dating Game" ventures ... coach for guidance on attracting a partner in the city streets of Chongqing. The bachelors are Zhou, a sheepish, older 30-something ...

If you want to experience China, you can't avoid Chongqing. This megacity is growing at a blistering place. But beware, it is not a place for anyone with a fear of heights, or a sensitive stomach.

While travelling, online maps can sometimes leave you completely lost. But in Chongqing, China's southern megacity, maps are almost always useless. This city is not just big - it's vertical.