Skyscraper in the context of High-rise

Louis Henry Sullivan (September 3, 1856 – April 14, 1924) was an American architect, and has been called a "father of skyscrapers" and "father of modernism". He was an influential architect of the Chicago School, a mentor to Frank Lloyd Wright, and an inspiration to the Chicago group of architects who have come to be known as the Prairie School. Along with Wright and Henry Hobson Richardson, Sullivan is one of "the recognized trinity of American architecture." The phrase "form follows function" is attributed to him; it encapsulated earlier theories of architecture and he applied them to the modern age of the skyscraper. In 1944, Sullivan was the second architect to posthumously receive the AIA Gold Medal.

Chicago is the most populous city in the U.S. state of Illinois and in the Midwestern United States. Located on the western shore of Lake Michigan, it is the third-most populous city in the United States, with a population of 2.74 million at the 2020 census. The Chicago metropolitan area has 9.41 million residents and is the third-largest metropolitan area in the country. Chicago is the seat of Cook County, the second-most populous county in the U.S.

Chicago was incorporated as a city in 1837 near a portage between the Great Lakes and the Mississippi River watershed. It grew rapidly in the mid-19th century. In 1871, the Great Chicago Fire destroyed several square miles and left more than 100,000 homeless, but Chicago's population continued to grow. Chicago made noted contributions to urban planning and architecture, such as the Chicago School, the development of the City Beautiful movement, and the steel-framed skyscraper.

A financial district is usually a central area in a city where financial services firms such as banks, insurance companies, and other related finance corporations have their headquarters offices. In major cities, financial districts often host skyscrapers and other buildings of architectural importance and are called financial centres; such major centres also include important financial utilities such as stock exchanges and the offices of the main financial regulatory authorities.

The World Trade Center, in Lower Manhattan, New York City, was destroyed after a series of terrorist attacks on September 11, 2001, killing almost 3,000 people at the site. Two commercial airliners hijacked by al-Qaeda members were deliberately flown into the complex's Twin Towers, at the time among the five tallest buildings in the world. The plane impacts dealt significant structural damage to the skyscrapers and started large fires in the towers, eventually resulting in both undergoing a total progressive collapse.

The North Tower (WTC 1) was the first building to be hit when American Airlines Flight 11 crashed into it at 8:46 a.m., causing it to collapse at 10:28 a.m. after burning for one hour and 42 minutes. At 9:03 a.m., the South Tower (WTC 2) was struck by United Airlines Flight 175; it collapsed at 9:59 a.m. after burning for 56 minutes.

Heating, ventilation, and air conditioning (HVAC /ˈeɪtʃˌvæk/) systems use advanced technologies to regulate temperature, humidity, and indoor air quality in residential, commercial, and industrial buildings, and in enclosed vehicles. Its goal is to provide thermal comfort and remove contaminants from the air. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Modern HVAC designs focus on energy efficiency and sustainability, especially with the rising demand for green building solutions. In modern construction, MEP (Mechanical, Electrical, and Plumbing) engineers integrate HVAC systems with energy modeling techniques to optimize system performance and reduce operational costs. "Refrigeration" is sometimes added to the field's abbreviation as HVAC&R or HVACR, or "ventilation" is dropped, as in HACR (as in the designation of HACR-rated circuit breakers).

HVAC is an important part of residential structures such as single family homes, apartment buildings, hotels, and senior living facilities; medium to large industrial and office buildings such as skyscrapers and hospitals; vehicles such as cars, trains, airplanes, ships and submarines; and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors.

In linguistics, a calque (/kælk/) or loan translation is a word or phrase borrowed from another language by literal word-for-word or root-for-root translation. When used as a verb, "to calque" means to borrow a word or phrase from another language while translating its components, so as to create a new word or phrase (lexeme) in the target language. For instance, the English word skyscraper has been calqued in dozens of other languages, combining words for "sky" (or "clouds") and "scrape" in each language. Examples include wolkenkrabber in Dutch, gratte-ciel in French, Wolkenkratzer in German, grattacielo in Italian, matenrō (摩天楼) in Japanese, drapacz chmur in Polish, arranha-céu in Portuguese, neboskreb (небоскреб) in Russian, rascacielos in Spanish, skyskrapa in Swedish, and gökdelen in Turkish.

Calques, like direct borrowings, often function as linguistic gap-fillers, emerging when a language lacks existing vocabulary to express new ideas, technologies, or objects. This phenomenon is widespread and is often attributed to the shared conceptual frameworks across human languages. Speakers of different languages tend to perceive the world through common categories such as time, space, and quantity, making the translation of concepts across languages both possible and natural.

An urban park or metropolitan park, also known as a city park, municipal park (North America), public park, public open space, or municipal gardens (UK), is a park or botanical garden in cities, densely populated suburbia and other incorporated places that offers green space and places for recreation to residents and visitors. Urban parks are generally landscaped by design, instead of lands left in their natural state. The design, operation and maintenance is usually done by government agencies, typically on the local level, but may occasionally be contracted out to a park conservancy, "friends of" group, or private sector company.

Depending on size, budget, and land features, which varies considerably among individual parks, common features include playgrounds, gardens, hiking, running, fitness trails or paths, bridle paths, sports fields and courts, public restrooms, boat ramps, performance venues, or BBQ and picnic facilities. Park advocates claim that having parks near urban residents, including within a 10-minute walk, provides multiple benefits.

Nishi-Shinjuku (西新宿; lit. 'West Shinjuku') is a neighborhood and skyscraper business district in Shinjuku Ward, Tokyo, Japan. The neighborhood is located west of Shinjuku Station and consists of 8 chōme (丁目), or Streets. The region was previously called Tsunohazu (角筈).

The NTT Docomo Yoyogi Building (NTTドコモ代々木ビル, Enu Tī Tī Dokomo Yoyogi Biru) is a skyscraper located in the Sendagaya district of Shibuya, Tokyo, Japan. At 240 meters (790 ft) tall, it is the ninth tallest building in Tokyo.

The United Nations Secretariat Building is a skyscraper at the headquarters of the United Nations in the Turtle Bay neighborhood of Manhattan in New York City. It contains the offices of the United Nations Secretariat, the executive organ of the United Nations (UN). The building, designed in the International Style, is 505 ft (154 m) tall with 39 above-ground stories. It was designed by a group of architects led by Wallace Harrison. Although the building is located within the United States, the site is under UN jurisdiction, so the building is exempt from some local regulations.

The Secretariat Building is designed as a rectangular slab measuring 72 by 287 ft (22 by 87 m); it is oriented from north to south and is connected with other UN headquarters buildings. The wider western and eastern elevations of the facade are glass curtain walls, while the narrower northern and southern elevations are made of marble. The Secretariat Building has 889,000 sq ft (82,600 m) of space. There are press offices, staff rooms, and other functions on the lower stories. The Secretariat offices are placed on the upper stories, which were originally arranged in a modular layout. The building also features various pieces of artwork. The building's style has inspired the construction of other glass curtain wall buildings in Manhattan.

The New York Times Building is a 52-story skyscraper at 620 Eighth Avenue, between 40th and 41st Streets near Times Square, on the west side of Midtown Manhattan in New York City, New York, U.S. Its chief tenant is the New York Times Company, publisher of The New York Times. The building is 1,046 ft (318.8 m) tall to its pinnacle, with a roof height of 748 ft (228 m). Designed by Renzo Piano and Fox & Fowle, the building was developed by the New York Times Company, Forest City Ratner, and ING Real Estate. The interiors are divided into separate ownership units, with the New York Times Company operating the lower office floors and Brookfield Properties operating the upper floors. As of 2025, the New York Times Building is tied with the Chrysler Building as the thirteenth-tallest building in the city.

The building is cruciform in plan and has a steel-framed superstructure with a braced mechanical core. It consists of the office tower on the west side of the land lot as well as four-story podium on the east side. Its facade is largely composed of a glass curtain wall, in front of which are ceramic rods that deflect heat and glare. The steel framing and bracing is exposed at the four corner "notches" of the building. The New York Times Building is designed as a green building. The lower stories have a lobby, retail space, and the Times newsroom surrounding an enclosed garden. The other stories are used as office space.

In astronomy, axis mundi is the Latin term for the axis of Earth between the celestial poles. In a geocentric coordinate system, this is the axis of rotation of the celestial sphere. Consequently, in ancient Greco-Roman astronomy, the axis mundi is the axis of rotation of the planetary spheres within the classical geocentric model of the cosmos.

In 20th-century comparative mythology, the term axis mundi – also called the cosmic axis, world axis, world pillar, center of the world, or world tree – has been greatly extended to refer to any mythological concept representing "the connection between Heaven and Earth" or the "higher and lower realms". Mircea Eliade introduced the concept in the 1950s. Axis mundi closely relates to the mythological concept of the omphalos (navel) of the world or cosmos.Items presented as examples of the axis mundi by comparative mythologists include plants (notably a tree but also other types of plants such as a vine or stalk), a mountain, a column of smoke or fire, or a product of human manufacture (such as a staff, a tower, a ladder, a staircase, a maypole, a cross, a steeple, a rope, a totem pole, a pillar, a spire). Its proximity to heaven may carry implications that are chiefly religious (pagoda, Temple Mount, minaret, church) or secular (obelisk, lighthouse, rocket, skyscraper). The image appears in religious and secular contexts. The axis mundi symbol may be found in cultures utilizing shamanic practices or animist belief systems, in major world religions, and in technologically advanced "urban centers". In Mircea Eliade's opinion: "Every Microcosm, every inhabited region, has a Centre; that is to say, a place that is sacred above all."

This list of tallest church buildings ranks church buildings by height. From the Middle Ages until the advent of the skyscraper, Christian church buildings were often the world's tallest buildings. From 1311, when the spire of Lincoln Cathedral surpassed the height of the Great Pyramid of Giza, until the Washington Monument was completed in 1884, a succession of church buildings held this title.

• The tallest church building in the world is the Sagrada Família in Barcelona, which surpassed Ulm Minster (161.53 m) on 30 October 2025 when its central tower reached 162.91 m. The tower is intended to reach 172 m when completed, expected in 2026.
• The tallest church building in the world until 2025 was the Ulm Minster (161.53 m), the main Lutheran congregation in Ulm, Germany.
• The tallest domed church building, and the tallest Catholic church until surpassed by Sagrada Família, is the Basilica of Our Lady of Peace (158 m) in Yamoussoukro, Ivory Coast.
• The tallest cathedral as well as the tallest church building with two steeples is Cologne Cathedral (157.22 m) in Cologne, Germany.
• The tallest domed cathedral as well as the tallest Eastern Orthodox is People's Salvation Cathedral (132 m) in Bucharest, Romania.
• The tallest brickwork church building is St Martin's Church (130.6 m) in Landshut, Germany.
• The tallest brickwork church building with two steeples is St Mary's Church (125 m) in Lübeck, Germany.
• The tallest wooden church building is Săpânța-Peri Monastery church (78 m) in Săpânța, Romania.
• The tallest church building in the Americas is the Cathedral of Maringá (124 m) in Maringá, Brazil.

The cities with the most churches surpassing 99 metres (325 feet) are Hamburg (5 of the 29 tallest churches, with 5 towers overall), Lübeck (4 of the 56 tallest churches, two of which with twin towers → 6 towers overall), Vienna (2), Tallinn (2), St. Petersburg (2), New York City (2), Dortmund (2) and Stralsund (2).

Telus Harbour, formerly Telus House and Union Tower, is a 30-storey office skyscraper at 25 York Street, on the south side of the traditionally defined financial district of Toronto, Ontario, Canada. As of 2016, Telus being the Anchor tenant, occupied 21 of 30 storeys (70%), which included 3 of them dedicated to fun and wellness. In 2021, the building earned BOMA BEST Platinum certification with a score of 99.2% which was, at the time, the highest score globally.

One World Trade Center, also known as One WTC and as the Freedom Tower, is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City. Designed by David Childs of Skidmore, Owings & Merrill, One World Trade Center is the tallest building in the United States, the tallest building in the Western Hemisphere, and the seventh-tallest in the world. The supertall structure has the same name as the North Tower of the original World Trade Center, which was destroyed in the terrorist attacks of September 11, 2001. The new skyscraper stands on the northwest corner of the 16-acre (6.5 ha) World Trade Center site, on the site of the original 6 World Trade Center. It is bounded by West Street to the west, Vesey Street to the north, Fulton Street to the south, and Washington Street to the east.

The construction of below-ground utility relocations, footings, and foundations for the new building began on April 27, 2006. One World Trade Center became the tallest structure in New York City on April 30, 2012, when it surpassed the height of the Empire State Building. The tower's steel structure was topped out on August 30, 2012. On May 10, 2013, the final component of the skyscraper's spire was installed, making the building, including its spire, reach a total height of 1,776 feet (541 m). Its height in feet is a deliberate reference to the year when the United States Declaration of Independence was signed. The building opened on November 3, 2014; the One World Observatory opened on May 29, 2015.

This is a list of the tallest buildings. Tall buildings, such as skyscrapers, are intended here as enclosed structures with continuously occupiable floors and a height of at least 350 metres (1,150 ft). Such definition excludes non-building structures, such as towers.

A tower block, high-rise, apartment tower, residential tower, apartment block, block of flats, or office tower is a tall building, as opposed to a low-rise building and is defined differently in terms of height depending on the jurisdiction. It is used as a residential or office building, or has other functions, including hotel, retail, or with multiple purposes combined. Residential high-rise buildings are also known in some varieties of English, such as British English, as tower blocks and may be referred to as MDUs, standing for multi-dwelling units. A very tall high-rise building is referred to as a skyscraper.

High-rise buildings became possible to construct with the invention of the elevator (lift) and with less expensive, more abundant building materials. The materials used for the structural system of high-rise buildings are reinforced concrete and steel. Most North American–style skyscrapers have a steel frame, while residential blocks are usually constructed of concrete. There is no clear difference between a tower block and a skyscraper, although a building with forty or more stories and taller than 150 metres (490 ft) is generally considered a skyscraper.

Steel frame is a building technique with a "skeleton frame" of vertical steel columns and horizontal I-beams, constructed in a rectangular grid to support the floors, roof and walls of a building which are all attached to the frame. The development of this technique made the construction of the skyscraper possible. Steel frame has displaced its predecessor, the iron frame, in the early 20th century.