Shenzhen

The gleaming manifestation of China's economic miracle, Shēnzhèn (深圳) has risen from the marshy Pearl River Delta into one of the world's most mega megacities in less time than it took London's St Paul's Cathedral to be built. Millions of migrants have been drawn to its golden gates from the Chinese countryside since the 1980s; now, Shēnzhèn attracts high-flying tech graduates and global corporations.