Chapter 37 Supplementary picture
Ancient Chinese sand ship model
Chinese Song Dynasty Bian River Boat Model
Bronze chariots and horses unearthed from the Mausoleum of Qin Shihuang
Zhaozhou Bridge is an open-shouldered single-hole arc stone arch bridge built in the Daye period of the Sui Dynasty
The Baodai Bridge was built as a joint-arch bridge in the Yuanhe period of the Tang Dynasty
The Marco Polo Bridge was first built in the Dading period of the Jin Dynasty as a double-arch stone bridge.
Today's Luding Bridge was built as an iron chain bridge in the Kangxi period of the Qing Dynasty
Bronze statue of Chinese railway engineer Zhan Tianyou erected in Badaling
Badaling Railway Tunnel