Despite it’s commonly used name “Puente Colgante” (= suspension bridge) this bridge is in fact a transporter bridge. In 2006 the UNESCO declared the bridge, which was built in 1893, as a World Heritage for its combination of beauty, innovation and functionality.
from the UNESCO website: “Vizcaya Bridge straddles the mouth of the Ibaizabal estuary, west of Bilbao. It was designed by the Basque architect Alberto de Palacio and completed in 1893. The 45-m-high bridge with its span of 160 m, merges 19th-century ironworking traditions with the then new lightweight technology of twisted steel ropes. It was the first bridge in the world to carry people and traffic on a high suspended gondola and was used as a model for many similar bridges in Europe, Africa and the America only a few of which survive. With its innovative use of lightweight twisted steel cables, it is regarded as one of the outstanding architectural iron constructions of the Industrial Revolution. …”
The bridge is located in Portugalete (which can be reached by train and the Metro Line 2 within 20 min from Bilbao) and Getxo (station Areeta with Metro Line 1 from Bilbao). Taking the cabin to the other site costs about 0,50 € but you can also take a lift up to the top of it and walk over the bridge (if you’re not afraid of heights) for 5€.