and for a little shameless self promotion, A neat example of form/material following function.
Currently under construction (i've got a neat timelapse of that) Waterlandseweg pedestrian/cyclist Bridge in Almere, simaltaniously crossing a canal, pedestrian route, nature zone, cycling route and two highways The shape is a parametric design based on negotiations between (tensile) strenght optimization, key viewpoints, and movement aswell as heavy and complex restrictions regarding zoning and (constantly shifting) heights.
The bridge is composed of Corten steel, and will evenly rust and so protect itself in the humid climate, requiring little to no maintainance.