Fish bones (also abbreviated ADP) are part of a network of much larger gallery, called Fantasques, due to the name of a road, above the galleries. As its name suggests, the network looks vaguely to a structure of a wheat. In fact, it is a network of parallels arranged around two dorsals (or main roads) with an orthonormal structure, much like certain Nazca archaeological symbols, or even a TV antenna, but definitively not like fish bones.
The main feature of these undergrounds is their purpose was not to drain water, unlike the other two parts of the network (The Colinettes and large galleries). Most galleries are straight, flat, millstone, with dry soil, with the notable exception of the main corridors, steep slope with many stairs.

The stairs cross of the peak battery. The corridor down the room leads to the research center, while the two others leads to the main ramparts.

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.

On the top of the Lantern tower, in the center of the cathedral. The main towers behind, in the front of the cathedral are empty.

The main entrance of the storm drain of Fresnes.

The top floor of the main arch is completely abandoned. Renovations are planned but the halls will no longer open to the public.

One of the many leaflets Claustrophile long to read.

I feel lonely. Sitting on the edge of a puddle, waiting night after night came from an image, even furtive, which will warm my frozen heart. Boredom is deadly but I am perhaps more myself.
I do not control my movements. It seems I am doomed to remain motionless near the puddle. I can sit there, going to bed at the top in every sense, to slip under the surface. But I can not go away. Several weeks have passed already, maybe more. I lost track of time. I also lost touch and smell.

It all began one evening in July, right here. I rode north through here. I walked into the puddle and I did not immediately understood what was abnormal about it opposed the reaction to my muddy boots. In retracing my steps that I understood, without understanding anything beyond. The water that I had defiled was perfectly clear! I did another test, stirring the surface with my dirty soles. But water does not disturb and do not wash my boot. Worse, it penetrated the boot but no step had resulted. I started to jump in with both feet, there was no splash. I thought mad.
I think when I last had committed error in allowing my curiosity until that train was going to lose. I squatted and I plunged his hand into the water. I could see through transparency, I felt the cold touch and wet. But the water do not wobble. If I was raising in my palm and I let her run, she immediately incorporated the puddle remained perfectly motionless. I was scared.
But after a few minutes I emerged reflects a man who looked at me. I was scared to see it without having heard it, but it was nothing of the horror that awaited me next. Because when I turned around there was nobody behind me. This man existed only in reflection. And only in this puddle. I saw him once. It was already too late.
I was terrified. The stranger in the mirror and spoke agitated, as if trying to tell me something. But he remained silent to my ears. I panicked. I wanted to run but I was so scared I did not notice the sky of the quarry. I myself am hit with unprecedented violence. I think the shock was fatal.
Where I felt back up, I saw myself lying with his head in a puddle of blood flowing to the puddle of water. But when I looked at the puddle that is me that I could not see. I had no reflection.
The body was lying nearby was finally identified but it was not mine wearing my clothing and my backpack.
It was the man I saw in the reflection! He set off again in flesh and blood, for me, leaving me alone and trapped in my fate! I could not even follow him, as if the puddle of water had been magnetized. Since I am still waiting in the darkness, someone realizes that the puddle is still ...

Maybe you than I expected. You who picked up this pamphlet, a little better scans the surface of the water ...

Louis Renault is a talented engineer. He invented the direct transmission gear box and patented it in 1898. With his invention, he made a fortune and began a series of land acquisitions at Boulogne. Louis Renault bought the Ile Seguin in the late 20s. First it was supposed to be a recreation area for workers, it will eventually build a new plant next to existing ones. In November 1929, the new plant is inaugurated. Work will continue a few more years.

The Seguin Island plant is fully autonomous and ultra modern. The power plant is designed to operate with multiple fuels (coal or oil).

All the production of vehicles is centralized, but the engines are still being built across the Seine. Robert Doisneau tooked pictures of the spinning of asbestos, foundry metallurgical, workshop tire manufacturing, ...

In 1936, the Renault plant is a symbol of working class struggle with its largest concentration of strikers in France. His reputation will not be denied until the plant closure.

During WWII, the plant is working with the Nazis. Louis Renault gone to jail. The plant was nationalized and in 1947 the 4cv is the success of the National Board of the Renault. 10,000 workers employed on the island. 40,000 workers employed on the site.

During the events of 1968, the island is a symbol of unionism. Workers get more social advances.

The last models produced by the plant are the Super 5 and the Express (a commercial vehicle based on the Super 5). On March 31, 1992, the range and stops the plant closes, now too small to produce new models.

Abandoned the island to be destroyed. The yard is huge and companies are fighting for the tender. The main thing is forgotten: The site must be cleared. The power plant is full of asbestos and the entire basement of the island is bathed by many chemicals. While the plant was emptied in a few months, the destruction tooked 13 years.

source: Legag.com(FR)

First steps in quarry until his last run, each cataphile notes an improvement in his behavior in the undergrounds. The route passes through several phases where his attitude toward the place, other individuals and especially in relation to itself will evolve.

Step 1: The disease of quarries.

It starts with a proposed descent. Through a friend or media, the neophyte becomes aware of the existence of a city under the city. Torn between the desire for exoticism and fear of the unknown, he went to the rendez-vous. In front of a bar or in front a subway, a diverse group waiting for him. They have all worn and dirty uniforms, each carrying packs of beer in hand, the other monstrous sacks on their shoulders. During the walk to the quarry, the main game is to scare again, both by sadism but also to test it and avoid it falters once inside.

Because everyone knows the strange disease that threatens the neophyte: The disease of quarries. As one who fears seasick when he sets foot on a boat, the apprentice will distressed by the entrance of the cave. Only after twenty meters underground to think he tons of rocks that overlook and threaten. Add to that the narrowness of the galleries, the disorientation and the inability to find the exit in this hellish labyrinth and you get a malaise that will fade with the times. At the exit, greatly relieved to be whole, the beginner will be happy to have survived such an adventure. Most will never return and not deviate from the quarry. Some however will want to repeat the experience and come away with the attack of subterranean depths.

Step 2: Thirst discovery.

Finally, the long-awaited map is formally placed in the hands trembling with emotion of the beginners. The first explorations where the latter takes the responsibility for guiding difficult: The errors and half-turns are frequent. Few were self-taught in this area, learning to move in an underground quarry is not obvious. But the excitement of discovering a new world is huge: There are so many things to see that often runs beyond the required time. At this stage, the cataphile often integrates a group of friends who will evolve. This is the beginning for some the desire to be recognized by his peers.

The master dome of the fashion store (Printemps Haussman), built in 1923 by the glassworker master Briere is from the very beginning. The main store was established in 1865. After the good market (bon marché) but before the Samaritaine. This name is now a brand of twenty store in France. The owners are a german bank and a brand of luxury italian stores, also established in 1865.