A few that I'd like to see on the list, all in the United Kingdom:
Goodwood, Chichester, West Sussex - the Hillclimb (used for the Goodwood Festival of Speed)
Goodwood, Chichester, West Sussex - the Circuit (used for the Goodwood Revival)
Millbrook Proving Ground, Bedfordshire - the 1 mile high speed circle
Millbrook Proving Ground, Bedfordshire - the Alpine Circuit
One famous track from Italy that must be included:
Rooftop test track, Fiat Factory, Lingotto, Turin - if you don't know it, watch the original 'Italian Job' film starring Michael Caine and those Mini's.