Where you today can find the new Paris opera house, Opéra Bastille, used to be a railway station, Gare de la Bastille, for trains heading east, the Strasbourg line. The last – steam engined - train left the station in 1969 and it was demolished in 1984.
Where there used to be rails, there is now a green, park like, promenade, some 4,5 km (3 miles) eastwards. At the end you reach the green area Bois de Vincennes. This creation has clearly created added value to the surrounding quarters (including the price for a flat).
To start with you walk on a viaduct; the underneath 72 arcades are today used for some quite fashionable shops, restaurants and cafés.My granddaughter Paloma took the lead and the rest of the family had to follow.She got fascinated by all the flowers and decided to have a closer look at most of them and of course ask for their names. (She did not learn very much due to lack of knowledge of her promenade partners.) Anyhow, we had a nice walk. To go back home, I took a municipal bike.