If you have attended Formula One races (watching on TV doesn't count) what are your favourite tracks and why?

Question by Gregnir: If you have attended Formula One races (watching on TV doesn't count) what are your favourite tracks and why?
My favourites and in no particular order are:
Spa-Francorchamps.
Monza.
Brands Hatch (unfortunately no longer an F1 track).
Paul Ricard (unfortunately no longer an F1 track).
Kyalami (unfortunately no longer an F1 track).
Barcelona.
Jacarapagua (unfortunately no longer an F1 track).
Circuit Gilles Villeneuve, Montreal.
Estoril (unfortunately no longer an F1

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