Have you ever wondered how vast the world truly is? Six hundred and twenty years ago, Chinese navigator Zheng He set sail from Taicang, Jiangsu, embarking on a journey that opened the way for Chinese exploration of the distant waters. Now we follow his course to Taicang, Malacca, Frankfurt, Lamu Islands and beyond, tracing the footsteps of history. 620 years on: Uncovering the great voyages of Zheng He, a video series, is coming soon. Let's set sail together!