Catacombs are man-made underground passages primarily used for religious purposes, particularly for burial. Any chamber used as a burial place is considered a catacomb, although the word is most commonly associated with the Roman Empire.
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 Catacombs of Rome are ancient catacombs, underground burial places in and around Rome, of which there are at least forty, some rediscovered since 1578, others even as late as the 1950s.
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 entirely or partially open to the public.
Highgate is a London Underground station and former railway station in Archway Road, in the London Borough of Haringey in north London. The station takes its name from nearby Highgate Village. It is on the High Barnet branch of the Northern line, between East Finchley and Archway stations, and is in Travelcard Zone 3.
The Allen County Courthouse is located at the block surrounded by Clinton/Calhoun/Main/Berry Streets in downtown Fort Wayne, Indiana, the county seat of Allen County. Built between 1897 and 1902, it is a nationally significant example of Beaux-Arts architecture. It was listed on the National Register of Historic Places in 1976 and was designated a National Historic Landmark on July 31, 2003.
A grotto (grot) is a natural or artificial cave used by humans in both modern times and antiquity, and historically or prehistorically. Naturally occurring grottoes are often small caves near water that are usually flooded or often flooded at high tide. Sometimes, artificial grottoes are used as garden features. The Grotta Azzurra at Capri and the grotto at Tiberius' Villa Jovis in the Bay of Naples are examples of popular natural seashore grottoes.
A conservatory is a building or room having glass or other transparent roofing and walls, used as a greenhouse or a sunroom. Usually it refers to a space attached to a conventional building such as a house, especially in the United Kingdom. Elsewhere, especially in America, it can often refer to a large freestanding glass-walled building in a botanic garden or park, sometimes also called a palm house if tall enough for trees. Municipal conservatories became popular in the early 19th century.
An orangery or orangerie is a room or dedicated building, historically where orange and other fruit trees are protected during the winter, as a large form of greenhouse or conservatory. In the modern day an orangery could refer to either a conservatory or greenhouse built to house fruit trees, or a conservatory or greenhouse meant for another purpose.
The Seattle Underground is a network of underground passageways and basements in the Pioneer Square neighborhood of Seattle, Washington, United States. They were located at ground level when the city was built in the mid-19th century but fell into disuse after the streets were elevated. In recent decades, they have become a tourist attraction, with guided tours taking place around the area.
Underground living refers to living below the ground's surface, whether in natural or manmade caves or structures. Underground dwellings are an alternative to above-ground dwellings for some home seekers, including those who are looking to minimize impact on the environment. Factories and office buildings can benefit from underground facilities for many of the same reasons as underground dwellings such as noise abatement, energy use, and security.
Nitt Witt Ridge is a house on two and a half acres in the coastal city of Cambria, California, United States. Artist and recluse Arthur "Art" Harold Beal (1896–1992) bought his hillside lot in 1928 and spent most of the next 50 years carving out the terraces with only a pick and shovel, creating his own "castle on a hill".
Underground Wine cellars are subterranean structures for the storage and the aging of wine. They are an integral component of the wine industry worldwide. The design and construction of wine caves represents a unique application of underground construction techniques.
The Odessa catacombs are a labyrinth-like network of tunnels located under the city of Odessa and its outskirts in Ukraine, that are mostly the result of stone mining, particularly coquina. The system of Odessa Catacombs consists of a network of basements, bunkers, drainage tunnels and storm drains as well as natural caves.
Hermit House is an earthen residence situated on a cliff overlooking the Mediterranean near the Sidna Ali Mosque in Herzliya, Israel, and is an example of vernacular architecture. Its owner, designer, and creator, Nissim Kahlon, has been building the structure solely by hand since the late 1970s, tunnelling deep into the cliff side and using natural sea materials.
A roof lantern is a daylighting architectural element. Architectural lanterns are part of a larger roof and provide natural light into the space or room below. In contemporary use it is an architectural skylight structure.
Villa Torlonia is a villa and surrounding gardens in Rome, Italy, formerly belonging to the Torlonia family. It is entered from the via Nomentana.
The city of London, England, has several catacomb spaces, although the high water table limits subterranean construction. There has been a long tradition of burial under the floors of churches, and during the period of new church construction in the Victorian era many were provided with vaults or crypts under the main structure.
The Mercantile Continental Building is located at 1810 Commerce Street in downtown Dallas, Texas (USA). It is a contributing structure at the edge of the Government District and adjacent to Main Street Garden Park. The building was built and owned by Mercantile National Bank and connected to their complex by an underground walkway.
Hobby tunneling is tunnel construction as a pastime. Usually, hobby tunnelers dig their tunnels by hand, using little equipment, and some can spend years or even decades to achieve any degree of completion. In some cases tunnels have been dug secretly, and only discovered by chance.
