^yep, but Guangzhou will soon become part of the biggest city in the world - already over 40 million people live in the Guangzhou-Shenzhen-HK area that is the Pearl River Delta, an area denser and smaller than LA. Along with the Yangtze River Delta (read: Shanghai, tipped to become the worlds biggest, most productive and richest urban area that will overtake the Pearl River Delta), it will form the tail of the dragon (the Yangtze being the 'mouth').
Guangzhou is fast building for its coming prestige:
Part of the CBD, you can just see the TV tower across the river from the huge twin towers at the back:
all supertalls: