Shanghai opens world’s longest 3D-printed footbridge


Shanghai is now home to yet another tourist attraction. The new 3D-printed footbridge measures 26-meters long and is the longest in the world.

Designed by a team from Tsinghua University, it took a pair of robotic arms about 450 hours to construct the concrete components for the bridge. Its classic curved shape was inspired by the ancient Anji Bridge in Hebei province. Construction on that bridge began in 595, during the Sui dynasty, and took 11 years. It’s still used by pedestrians today.