Nearly every country’s Olympic venues fall into disuse. That’s one reason why the Olympics are probably best held in the US or UK or France, etc. where countries already have the resources. When countries like Greece or China built these resources they basically went into disuse immediately after. Even the Olympic village built in Atlanta cost more to refurbish than it would hlikely have taken to build from scratch, because these things are built in tight deadlines, and only really need to last about 2 weeks, so all sorts of shortcuts which make them unviable for non olympics use end up being taken to get them done by the deadline.