After Piano Nobile
I project I did in Venice where I preserve a Palazzo Grimani to change function based on water height preserving it for the next century and beyond.
I convinced her to put strutting Leo in it!
"Three out of six surfaces of the cube are made of flexible membrane (foil mirror) with air tank and a compressor connected to it and the other three mirrors are semi transparent spy-glass. By inflating or deflating the air tank, the membrane turns convex or concave, deforming the reflections." Via.