Saint-Jacques (Paris Métro)

La Santé Prison (literally meaning Prison of la Santé Street) (French: Maison d'arrêt de la Santé or Prison de la Santé) is a prison operated by the French Prison Service of the Ministry of Justice located in the east of the Montparnasse district of the 14th arrondissement in Paris, France at 42 Rue de la Santé. It is one of the most infamous prisons in France, with both VIP and high security wings. Along with the Fleury-Mérogis Prison (Europe's largest prison) and the Fresnes Prison, both located in the southern suburbs, La Santé is one of the three main prisons of the Paris area.

The Collège Sévigné is a French non-denominational private school. The school was founded in 1880 by Mathilde Salomon, becoming the first French non-denominational high school for young women, two months before the vote of the "Camille Sée" law establishing public secondary education for young women, and three years before the opening of the Lycée Fenelon. The founders, grouped in an association called "Société pour la propagation de l'instruction parmi les femmes", included Paul Bert (1833–1886), former Minister for Education, and a militant for Public Education. The school became co-educational in 1969. Collège Sévigné was also the first school in France to open a kindergarten, in 1909. Famous contributors to the education program at the school have been Alain, Gurvitch, Jankelevitch, Dumezil, Braudel, Mounier, Carcopino, Merleau-Ponty, Jacqueline de Romilly. The school is only one of three non-denominational private schools in Paris. The school is located on 28 Rue Pierre-Nicole in the 5th arrondissement. Collège Sévigné offers classes from kindergarten to the Baccalaureat.

The Hôtel de Massa is an 18th-century hôtel particulier, or large townhouse, at 38 rue du Faubourg Saint-Jacques in the 14th arrondissement of Paris. It was originally located on the avenue des Champs-Élysées and was moved in 1929 to its present location, in a park beside the gardens of the Paris Observatory. Classified as a historical monument, it has since been occupied by the Société des gens de lettres.

The École pratique des hautes études (French pronunciation: ​[ekɔl pʁatik de ot.z‿etyd]), abbreviated EPHE, is a Grand Établissement in Paris, France. It is highly selective, and counted among France's most prestigious research and higher education institutions. It is a constituent college of the elite Université PSL (together with ENS Ulm, Paris Dauphine or Ecole des Mines). Its degrees in religious studies and in history count among the best in the world. Closely linked to École française d'Extrême-Orient and Institut français du Proche-Orient, EPHE has formed continuously world-class experts in Asian and Islamic studies and among them investment bankers, diplomat and military officers specialized in these areas. Particularly, leading researchers in military strategy have taught in EPHE for more than a century, such as, by example, Hervé Coutau-Bégarie. Moreover, famous researchers in natural sciences (especially neurosciences and chemistry) teach and taught in EPHE (among them Jean Baptiste Charcot and Marcellin Berthelot). Highly regarded for its top level in both natural and human sciences, EPHE has relations and exchange programs with world-renowned institutions such as Cambridge, Princeton, and Al-Azhar.

The Paris meridian is a meridian line running through the Paris Observatory in Paris, France – now longitude 2°20′14.02500″ East. It was a long-standing rival to the Greenwich meridian as the prime meridian of the world. The "Paris meridian arc" or "French meridian arc" (French: la Méridienne de France) is the name of the meridian arc measured along the Paris meridian.The French meridian arc was important for French cartography, inasmuch as the triangulations of France began with the measurement of the French meridian arc. Moreover, the French meridian arc was important for geodesy as it was one of the meridian arcs which were measured to determine the figure of the Earth via the arc measurement method. The determination of the figure of the Earth was a problem of the highest importance in astronomy, inasmuch as the diameter of the Earth was the unit to which all celestial distances had to be referred.

Arago telescope (Lunette Arago) is a 38 cm (15 inch) aperture refracting telescope at Paris Observatory, installed in 1857. Francois Arago ordered this telescope from the telescope making firm Lebreours in 1839, and after a protracted development was completed by 1855. The name Lunette Arago (Arago refractor) is a modern name for the telescope, and other large refractor of Paris observatory, is the one at Meudon. It has gone by a variety of names having to do with various aspects of the telescope, such as its aperture, or location on the East tower of the Paris observatory, or its equatorial mount made by Brunner. In one journal report it was called the 'east equatorial' for example, in another instance '38 cm refractor'. In French language it has been called the La lunette équatoriale de 38 cm de l'Observatoire de Paris.The telescope had an objective lens 14 pouces across, which is a name for Paris Inches; this works out to about 38 cm (14.96 (usually rounded to 15) English inches). The original objective was completed by Lerebours by 1844. The equatorial mounting made by Brunner was delivered in 1859. The clock drive for the equatorial was made by Breguet.The equatorial mounting was not ordered until early 1850s, after the new dome work, completed in 1847, had been finished. The floor of the dome was also designed to move. The telescope was installed in the new east dome built for it, on top of the Paris Observatory building.There was some issue with the lens, and it was re-polished in 1874. In the early 1880s a new objective lens was installed, made by the Henry Brothers. Also the dome and mounting were modified at that time, including replacing an earlier wooden tube with one of iron.The telescope is known to have been used for observing double stars, minor planets (asteroids), and also some photographic astronomy in the late 19th century. When it made its debut in the late 1850s, it was noted for its 38 cm (15 inch) Lerebours objective, Brunner mount, and there was some discussion over its use for astro photography.This telescope is noted for its photometric observations of the Galilean Satellites (Io, Europa, Callisto, and Ganymede) in the 1880s. Corunu and Obrecht would photometrically detect the eclipses of Jupiter by its moons at Paris Observatory.Some of the photometers it was used with included different types, such as polarizing photometers. Some examples of photometers for the telescope in the late 19th and early 20th century include Photometers R, T, W, and H. Photometer R was a roughly half meter long brass tube, 5 cm in diameter with two prisms inside. The prisms were made of quartz. Photometer T on the other hand had a drum 12.5 cm in diameter and over 17 cm long.On June 23, 1878 the East Equatorial of Paris Observatory (the Arago) was first used for photometric detection of an eclipse of Jupiter's moons. The telescope was also used to photometrically study double stars with Photometer H.A Nicol prism was used at the eyepiece for certain instrumentation setups.Over 1800 double stars were observed with the 38 cm of Paris Obs. between 1966 and 1971.The telescope was used for PHEMU85 . PHEMU85 was international astronomical collaboration to view the moons of Jupiter in 1985.The Paris Observatory building was significantly modified to support the weight of the new telescope and dome, and modifications included a new cement support structure and a steel lattice to hold the new telescope.

The Paris Observatory (French: Observatoire de Paris French pronunciation: ​[ɔbsɛʁvatwaʁ də paʁi]), a research institution of the Paris Sciences et Lettres University, is the foremost astronomical observatory of France, and one of the largest astronomical centers in the world. Its historic building is on the Left Bank of the Seine in central Paris, but most of the staff work on a satellite campus in Meudon, a suburb southwest of Paris. The Paris Observatory was founded in 1667. Construction was completed by the early 1670s and coincided with a major push for increased science, and the founding of the Royal Academy of Sciences. King Louis XIV's minister of finance organized a "scientific powerhouse" to increase understanding of astronomy, maritime navigation, and science in general.Through the centuries the Paris Observatory has continued in support of astronomical activities, and in the 21st century connects multiple sites and organizations, supporting astronomy and science, past and present.

Gare de Denfert-Rochereau is a railway station in Paris. It was one of the first stations of the French railway network, and is still in use as a station of Paris' RER line B. The station was built from 1842 and opened on 7 June 1846 as the Gare d'Enfer (or Gare de Paris-d'Enfer), after the nearby Place d'Enfer (now called the Place Denfert-Rochereau), itself named after the Barrière d'Enfer. The station building had a circular shape as it possessed a rail loop. Indeed, the station was the Parisian terminus of a line from Sceaux. The Ligne de Sceaux used the Arnoux system (after its inventor), as it required the construction of specific engines capable of travelling on very tight curves and broad gauge tracks of 1,750 mm (5 ft 8+7⁄8 in). The Arnoux system was abandoned in 1891 and the line was converted to 1,435 mm (4 ft 8+1⁄2 in) (standard) gauge. The line was extended to Luxembourg station in 1895, with the newly created Port-Royal station along the way. At the same time, the station was renamed after Pierre Philippe Denfert-Rochereau. The line was operated by the Chemin de Fer de Paris à Orléans until 1937 when the Compagnie du Chemin de Fer Métropolitain de Paris (CMP) (predecessor of the RATP) took over. It became line B of the RER in 1977 on being extended to meet line A at Châtelet – Les Halles. The station building of Denfert-Rochereau station is the oldest railway building still standing in Paris. Denfert-Rochereau remains a station of line B of the Réseau Express Régional and is an interchange with the métro station of the same name, Denfert-Rochereau.

Denfert-Rochereau (French pronunciation: ​[dɑ̃fɛʁ ʁɔʃʁo]) is a station on the Paris Métro in France. An adjacent station with the same name is served by RER B.

The Catacombs of Paris (French: Catacombes de Paris, pronunciation ) are underground ossuaries in Paris, France, which hold the remains of more than six million people in a small part of a tunnel network built to consolidate Paris' ancient stone quarries. Extending south from the Barrière d'Enfer ("Gate of Hell") former city gate, this ossuary was created as part of the effort to eliminate the city's overflowing cemeteries. Preparation work began shortly after a 1774 series of Saint Innocents-cemetery-quarter basement wall collapses added a sense of urgency to the cemetery-eliminating measure, and from 1786, nightly processions of covered wagons transferred remains from most of Paris' cemeteries to a mine shaft opened near the Rue de la Tombe-Issoire. The ossuary remained largely forgotten until it became a novelty-place for concerts and other private events in the early 19th century; after further renovations and the construction of accesses around Place Denfert-Rochereau, it was opened to public visitation from 1874. Since 2013, the Catacombs number among the fourteen City of Paris Museums managed by Paris Musées. Although the ossuary comprises only a small section of the underground "carrières de Paris" ("quarries of Paris"), Parisians currently often refer to the entire tunnel network as the catacombs.

Place Denfert-Rochereau, previously known as Place d'Enfer, is a public square located in the 14th arrondissement of Paris, France, in the Montparnasse district, at the intersection of the boulevards Raspail, Arago, and Saint-Jacques, and the avenues René Coty, Général Leclerc, and Denfert-Rochereau, as well as the streets Froidevaux, Victor-Considérant and de Grancey. It is one of the largest and most important squares on the left bank of the Seine. The square is named after Pierre Denfert-Rochereau, the French commander who organized the defense at the siege of Belfort during the Franco-Prussian War (1870–1871). It is dominated by the Lion of Belfort statue (a smaller version of the original in the town of Belfort) by Frédéric Bartholdi. The square is the location of the Paris Catacombs museum. It is frequently the place where demonstrations and protest marches in Paris either start or end. The square is also the place depicted on the backdrop at the beginning of the third act of La Bohème by Puccini.

The Sainte-Anne Hospital Center (French: centre hospitalier Sainte-Anne) is a hospital located in the 14th arrondissement of Paris, specializing in psychiatry, neurology, neurosurgery, neuroimaging and addiction. With its creation dating to 1651, the organization remains, along with the Esquirol Hospital in Saint-Maurice, the symbol of psychiatric asylums in France.