Coming to Paris from Brussels. Planning to stay in Paris one day. I know that it is not good option to go to center by car. What is the best place to leave car in order avoid expensive payment and traffic and have good approach to city center?
There are a number of "Parcs relais" close to metro, train or RER stations. You can find a map here:
Note however that some may be quite busy.
A better alternative is probably to take the train directly from Brussels to Paris. It will be quicker, you'll get directly to the city center, and if you book in advance, it will probably be cheaper as well.