A Survival Guide to Customs and Etiquette. CultureShock! Shanghai is the complete guide for those who are trying to get a handle on China's glittering crown jewel that is both charmingly ancient yet stunningly ultra modern. Boasting some of the world's tallest buildings, largest businesses, longest bridges, fastest trains and elevators, and finest restaurants, Shanghai is a megacity and world-class financial centre that may well be the world's first cashless society, but it also has cosy streets filled with napping bicyclists and dancers in costume. With impressive light shows - backlit freeways and luminous skylines, Shanghai is truly a city of light