Insight Guide The Silk Road is the complete illustrated guide to one of the world's ultimate travel adventures. Passing right through the heart of Asia, this ancient trade route traverses a quarter of the globe from the heart of China to the Mediterranean via a vast, inhospitable expanse of mountains and desert. The guide covers all the sights along the way across 13 countries and 6 time zones, with authoritative chapters on the Silk Road's history and culture to put it all into context.