40 facts you definitely didn't know about Paris

21. There are approximately a dozen ghost stations in Paris. Among them is the station Porte Molitor, built in 1923, that was originally intended to access the stadium at the Parc des Princes. Today, the tracks are used as a garage for the trains. 22. Likewise, the station Porte des Lilas (1921-1939) was established as a shuttle between the lines 3bis and 7bis. Today, it is used mostly for filming.