Due to open this summer, China’s Huajiang Canyon Grand Bridge in Guizhou is about to become the tallest bridge in the world. This record-breaking construction project has faced numerous engineering obstacles, from working at high altitude to navigating extremely difficult mountainous terrain.

But despite the challenges, the bridge has been constructed surprisingly quickly and on a modest budget when compared to other global megaprojects. But how? Read on to discover how China built a modern marvel for comparatively little money. 

All dollar amounts in US dollars.