One of Ge's favorite pieces shown in the exhibition in Hong Kong was a polychrome piece of pottery camel unearthed in a 1,500-year-old tomb site in Shaanxi, whose provincial capital was Xi'an.

A camel with a pair of sacks straddled over its back is in the midst of rising from a kneeling position. The load must be heavy and the animal must have struggled a little, something indicated by its gaping mouth, flared nostrils and front-gazing eyes.

"On the Silk Road, no rest is permanent and the only way to complete a journey is to journey on," Ge says.