The construction site of a tunnel at Nanterre.

The construction site of a tunnel at Nanterre.

Duration:00:00:51

Video / A tunnel in a quarry, used for ventilation between two areas.

video by Cougar

The tunnel entrance of the small ring in the Parc Montsouris.

The creation of a railway track near Paris was decided in 1851. Very quickly, the main stations of Paris are linked, including that of Bercy. In 1867, the loop is completed.

Following the increase in passenger traffic on the subway, going to the inner ring decreases. In 1934, there is more train traveler. Only freight trains. In 1993, the entire line is abandoned, with the exception of the line that runs along the banks of the Seine, used by commuter trains.

The tunnel under the inner ring Montsouris Park.

The construction site of a tunnel at Nanterre.

The train from the airport of Orly (OrlyVal) should serve a few additional stations but construction was never completed.

This passage was cut through a pillar for the passage of vehicles, after a portion of the quarry was rendered inaccessible by worksites on the surface.