I spotted these photos from earlier this year lurking in my files, and realised it was a bridge I hadn't yet featured here. These aren't great photos, I was in a hurry and didn't have time to find a good viewpoint.
The bridge was designed by Whitbybird and Wilkinson Eyre and spans the main hall in London's Science Museum, providing access to the Challenge of Materials gallery.
The "stays" are a closely spaced fan of stainless steel wires, each a mere 1.58mm thick. Each wire runs from a support fan bolted to the building's columns, down to the deck, across the underside, and then back to another support fan. Tie-down cables below the deck ensure rigidity and prevent vibrations.
The glass floor and sides, which you might expect to give a sense of precariousness, are surprisingly unexciting: the sheer rigidity of the structure eliminates any sense of peril.