GOLD!
The venues and infrastructure have been first class.
There’s a lot of hidden engineering in the venues: perhaps most notably the one used for the Equestrian events.
That whole stage has a carefully calibrated level of drainage for the best ‘feel’ for riders. It’s also been microdamped so that when a horse jumps the vibrations have disappeared before it lands. And the whole thing can be removed a week after the Olympics finish.
Amazing stuff.
Also: many venues have been built on land which was once contaminated dockland. I’ve been reading about the ‘Soil Hospital’ the contractors created to process an enormous amount of soil. You could grow crops on those places now.
The Triumph of Title IX.