On what Parisian avenue does the Bastille Day parade take place?

The Bastille Day parade takes place on the Champs-Élysées, Paris’s grand ceremonial avenue.

The route traditionally runs from Place Charles de Gaulle, beside the Arc de Triomphe, toward Place de la Concorde. Troops march down the avenue while military aircraft pass overhead, making the route both a national stage and a highly visible symbol of France. The president reviews the parade from the ceremonial area near the route’s eastern end.

The avenue was not the route in every historical period. French national-day parades have sometimes moved elsewhere, including routes between the Place de la République and the Place de la Bastille. That history explains why the Champs-Élysées is the traditional answer rather than an absolute claim about every single year.