Puente de la Mujer

This guide to the Puente de la Mujer in Buenos Aires starts in a landlocked steel plant in Vitoria-Gasteiz, Spain, where welders assembled a footbridge they knew would never touch a Spanish river. You'll hear how the pieces crossed the Atlantic to the old grain docks of Puerto Madero, where a second crew of Argentine ironworkers rebuilt it on the spot where it stands today. It also traces engineer Santiago Calatrava's idea for the bridge's shape, a couple caught mid-tango, and how a single tilted mast does the real structural work. Watch the mast's angle from below rather than from across the dock.