The calendar of the first World Championship in Formula 1, that of 1950, contained seven grands prix. Seven circuits, therefore, three of which are incredibly still used (Silverstone, Montecarlo, Monza), one... almost (Spa-Francorchamps), two completely abandoned (Bremgarten, Reims).
Here are some of the tracks on which the Formula 1 has left traces of its history, but which are no longer part, for various reasons, of the calendar.
Let's start with the first two decades.
Browse the gallery of abandoned Formula 1 circuits.