Autodromo Nazionale Monza
The history is epic, one of a few remaining F1s to be part of the inaugural Formula One Championship in 1950. You can still walk on and under parts of the original Monza Autodrome (only 1 of 3 permanent autodrome in the world at that time) which was raced on at Monza between 1922 and 1957.
The Italian Grand Prix counted toward the European Championship from 1935 to 1938. It was designated the European Grand Prix seven times between 1923 and 1967, when this title was an honorary designation given each year to one grand prix race in Europe.'