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

This place is called Quarrymen's footbath but it's particularity is to be the first geological drilling in Paris, in the oldest medieval quarry of Port-Mahon, close to the official Paris catacombs.

The structure of the dome of the Hôtel-Dieu de Lyon was made of wood. But during the Second World War, a fire destroyed it Sept. 4, 1944. It was only that funds be provided by the state for its reconstruction, hospices have not enough money. The repair was carried out by the Chief Architect of Historic Monuments Jean-Gabriel Mortamet according to architectural plans of Soufflot.

source: Lyon patrimoine (FR)

The origin of the silver-lead mines Trémusson is Roman. It was already long pieces of Roman origin in the galleries. An excavation site has confirmed the original site, by the discovery of tiles to hook on both sides of the creek.

In the late 17th century, the English are precursors in the mining of nonferrous metals. They buy logging concessions in Britain. However, the site is still not exploited Trémuson. The concession is then awarded on 1 April 1732 to a Breton of Morlaix Guillotou of Kerver. Speculation around the precious metal is growing, which does not prevent the owner from going bankrupt due to a bad investment.

In 1740 the Mining Company of Lower Britain bought the concession. It will take 40 years to industrialize the mines. In 1782, more than 500 people work at the mine site. The size of the concession is over 90,000 hectares. It will never be fully exploited. At the end of the 19th century, the exploitation fall. The owners regularly change without success.

It was not until 1922 that the operation resumes. A laundry room is built on a hillside in 1924. She can wash the ore and the sort because the deposit is less rich than in ancient times. A year later, a foundry was built. The operation is successful for ten years, then the company suffers Dufourg the general crisis. In 1931, the mine was permanently closed. It will never be exploited.

Today, the mines are protected refuges for bats but the many miles of tunnels continue to drain the lead in the village by water infiltration. The villagers can not eat vegetables from their gardens or drink water polluted groundwater. There are remains of the laundry and the foundry behind the village.

source: patrimoine.region-bretagne.fr(FR)

Quarries of Paris - Showroom mineralogy of the Rue Saint Jacques.

The showroom mineralogical most famous of Paris is the Salle Saint-Jacques. It was constructed by Major Gambier in the heart of the underground quarry system of the GRS (Great South network), just false catacombs at Denfert-Rochereau, in fact ossuaries in old underground quarries.

The side benches were used to display the site's geological curiosities. At the center of the room, a staircase dummy materialized superposition of limestone beds of the place. Each step was a sample. Originally, the name of each geological layer of rock was inscribed on the front steps of each room but this was very bumpy because too many visitors have visited illegal.

Can be found in certain geological showroom more difficult to access such information.

source: website of Zedou(FR)

Built in 1522, the castle of the bull is a defensive fortification. It was upgraded by Vauban in 1700. The work took about 45 years. The castle of the bull has never been a major military role. It has been used as a prison for a long time. In 1914 he was classified a historical monument. This does not prevent the Germans using it as DCA during the Second World War. After the war, the sailing school Morlaix settles for 20 years. Then in 1980, it is abandoned. Fishermen love to come and make a fire to eat but they ransacked the wood fittings. Today it is finally restored and visited by the public.

In the quarries of the 16th in Paris, in the Palais de Chaillot. These quarries have been called "catacombs Trocadero" because a part was used in the Universal Exhibition of 1900 to show the public the geology of the basement. Height 55 feet 4 inches / 17 Metes 8693 (as printed on the wall)

We call these underground quarries "quarries of Chaillot". The size of these quarries was 12 acres originally, but now it remains only a small network of underground tunnels. At Expo 1900, we used a small portion of the underground galleries to present the work of mining and underground quarries. A prototype of the Channel Tunnel was also conducted.

Control Room of the NATO radar base, the fort of Mount Salbert.

Fort Lefebvre culminates at the top of Mount Salbert 650m altitude. It said a strong "Sere River". It was built from 1874 to 1877. On May 12, 1955, NATO reuses the fort to house a communications center and a radar base. The book is officially delivered to the Air Force ole March 26, 1958. The book "G" Air Defense Planning (DAT) has 7 radio antennas. The old fort is used as a barracks for soldiers.

The radar base is not exactly the strong, but under the fort. Access from the fort is a long staircase of 322 stairs that descends into a concrete wall strongly.

The site is no longer running quickly but it remains occupied by the army until 1972. The mayor of Belfort is the current owner. It secures the site is now a promenade.

The sports stadium in Bordeaux was built from 1959 to 1966. It is up to the late 1970s, used as major sporting events but in 1979, the city transforms the room with acoustic treatment. The sports hall can accommodate singers. Today is a secondary hall of the Opera of Bordeaux and there is more sporting events in this room.

Aquatic center abandoned of Chevry

In 1987, the council is negotiating with Compagnie Generale des Eaux construction of an aquatic center. In 1988, the new aquatic center is opened. The private company obtains a contract of 30 years, with the obligation to provide a public service for city schools.

After four years of operating deficits, the company Aqualand calls for an end of the concession January 31, 1993.

On 1 February 1993, the mayor bought the equipment and Aqualand becomes Aquagif.

Until 1997, the institution's financial health is sound. From 1998, a report from the Audit Office highlights a deterioration brought on by poor weather, increased personnel costs and expenses of heating and hot water (IFR200240 report).

The report also states that the municipality has used various means to hide the difficulties of the institution (Former Mayor Robert Trimbach will defend itself in its response to the use of a policy of long-term. IFO27010301 Report.)

Summer is the period which brings the most money and serves to balance the books. However, in May 2002, just before the summer, the aquatic center closes down.

An auction should take place but the building was battered scrap dealers. Christmas 2003, when the building is almost completely demolished, one can still see all the devices in the gym, ready to be thrown in the trash.

source: report of the Court of Auditors IFR200240(FR) and IFO27010301(FR)