Mace Hudson from Suthwood rocks!
Most Olympic buildings are used for either there primary function - i.e. as an athletics stadium or aquatics stadium - or are converted into something more useful and cost effective. For example the Olympic village (where the athletes live during the Games) is often turned into low rent housing and apartments for students, and some Olympic parks have now turned into entertainment and business complexes - with conference rooms, hotels, arcades, cinemas and much more. What Olympic buildings become is entirely down to the Games organizers and how much planning they put into it. Some venues may be left unused and falling into disrepair but some are very profitable.
They are open to the public.
Of course, they have to be!
It costs $280 billions
no at least not for a while in the first olympic games chariot racing was acceptable. Now days it is considered too dangerous.
No it is not an Olympic sport.
Frei Otto
I don't know when it was first used. I do know that it is now considered a chemical that is lethal to our health.
A stadium , Velodrome , Olympic Village , BMX park etc.
Concrete
i do not now
no, but it should be