The Catacombs of Paris 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's ancient stone quarries. Extending south from the Barrière d'Enfer 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 basement wall collapses around the Holy Innocents' Cemetery added a sense of urgency to the cemetery-eliminating measure, and from 1786, nightly processions of covered wagons transferred remains from most of Paris's cemeteries to a mine shaft opened near the Rue de la Tombe-Issoire.
Catacombs are man-made subterranean passageways for religious practice. Any chamber used as a burial place is a catacomb, although the word is most commonly associated with the Roman Empire.
A tomb is a repository for the remains of the dead. It is generally any structurally enclosed interment space or burial chamber, of varying sizes. Placing a corpse into a tomb can be called immurement, although this word mainly means entombing people alive, and is a method of final disposition, as an alternative to cremation or burial.
Clerkenwell is an area of central London, England.
Camden Town, often shortened to Camden, is an area in the London Borough of Camden, around 2.5 miles (4.1 km) north of Charing Cross. Historically in Middlesex, it is the administrative centre of the borough and identified in the London Plan as one of 34 major centres in Greater London.
Subterranean London refers to a number of subterranean structures that lie beneath London. The city has been occupied by humans for two millennia. Over time, the capital has acquired a vast number of these structures and spaces, often as a result of war and conflict.
The River Fleet is the largest of London's subterranean rivers, all of which today contain foul water for treatment. It has been used as a sewer since the development of Joseph Bazalgette's London sewer system in the mid 19th century with the water being treated at Beckton Sewage Treatment Works. Its headwaters are two streams on Hampstead Heath, each of which was dammed into a series of ponds—the Hampstead Ponds and the Highgate Ponds—in the 18th century. At the southern edge of Hampstead Heath these descend underground as sewers and join in Camden Town. The waters flow 4 miles (6 km) from the ponds.
The Catacombs of Rome are ancient catacombs, underground burial places in and around Rome, of which there are at least forty, some rediscovered only in recent decades. Though most famous for Christian burials, either in separate catacombs or mixed together, Jews and also adherents of a variety of pagan Roman religions were buried in catacombs, beginning in the 2nd century AD, occasioned by the ancient Roman ban on burials within a city, and also as a response to overcrowding and shortage of land. The most extensive and perhaps the best known is the Christian Catacomb of Callixtus located near the Park of the Caffarella, but there are other sites, both Christian and not, scattered around the city, some of which are now engulfed by modern urban sprawl.
An underground city is a series of linked subterranean spaces that may provide a defensive refuge; a place for living, working or shopping; a transit system; mausolea; wine or storage cellars; cisterns or drainage channels; or several of these. Underground cities may be currently active modern creations or they may be historic including ancient sites, some of which may be all or partially open to the public.
Brompton Road is a disused station on the Piccadilly line of the London Underground, located between Knightsbridge and South Kensington stations.
West Norwood Cemetery is a 40-acre (16 ha) rural cemetery in West Norwood in London, England. It was also known as the South Metropolitan Cemetery. One of the first private landscaped cemeteries in London, it is one of the "Magnificent Seven" cemeteries of London, and is a site of major historical, architectural and ecological interest.
A hypogeum or hypogaeum is an underground temple or tomb.
West Brompton is an area of west London, that straddles the boundary between the London Borough of Hammersmith and Fulham and Royal Borough of Kensington and Chelsea. The centuries-old boundary was traced by Counter's Creek, now lost beneath the West London Line railway.
The Odesa Catacombs are a labyrinth-like network of tunnels located under the city of Odesa and its outskirts in Ukraine, that are mostly the result of stone mining, particularly coquina. The system of Odesa Catacombs consists of a network of basements, bunkers, drainage tunnels and storm drains as well as natural caves.
Crystal Palace (High Level) was a railway station in South London. It was one of two stations built to serve the new site of the Great Exhibition building, the Crystal Palace, when it was moved from Hyde Park to Sydenham Hill after 1851. It was the terminus of the Crystal Palace and South London Junction Railway (CPSLJR), which was later absorbed by the London, Chatham and Dover Railway (LCDR).
The Catacombs of San Gennaro are underground paleo-Christian burial and worship sites in Naples, Italy, carved out of tuff, a porous stone. They are situated in the northern part of the city, on the slope leading up to Capodimonte, consisting of two levels, San Gennaro Superiore, and San Gennaro Inferiore. The catacombs lie under the Rione Sanità neighborhood of Naples, sometimes called the "Valley of the Dead". The site is now easily identified by the large church of Madre del Buon Consiglio.
Subterranea are underground structures, both natural and human-made. Some subterranea and related topics include:
The Camden Catacombs are a system of underground passages in Camden Town in north London underneath part of the Camden markets, constructed in the 19th century, and as of 2012 owned by Network Rail. They are not true catacombs as they were never used as repositories for dead bodies, instead being an underground area originally used as stables for horses and pit ponies working on the railways.
Clerkenwell (old) Prison, also known as the Clerkenwell House of Detention or Middlesex House of Detention was a prison in Clerkenwell, London, opened in 1847 and demolished in 1890. It held prisoners awaiting trial.
A receiving vault or receiving tomb, sometimes also known as a public vault, is a structure designed to temporarily store dead bodies in winter months when the ground is too frozen to dig a permanent grave in a cemetery. Technological advancements in excavation, embalming, and refrigeration have rendered the receiving vault obsolete.
