List of largest buildings in the context of "List of tallest buildings in Tokyo"

The Boeing 747 is a long-range wide-body airliner designed and manufactured by Boeing Commercial Airplanes in the United States between 1968 and 2023.After the introduction of the 707 in October 1958, Pan Am wanted a jet 2+1⁄2 times its size, to reduce its seat cost by 30%. In 1965, Joe Sutter left the 737 development program to design the 747. In April 1966, Pan Am ordered 25 Boeing 747-100 aircraft, and in late 1966, Pratt & Whitney agreed to develop the JT9D engine, a high-bypass turbofan. On September 30, 1968, the first 747 was rolled out of the custom-built Everett Plant, the world's largest building by volume. The 747's first flight took place on February 9, 1969, and the 747 was certified in December 1969. It entered service with Pan Am on January 22, 1970. The 747 was the first airplane called a "Jumbo Jet" as the first wide-body airliner.

The 747 is a four-engined jet aircraft, initially powered by Pratt & Whitney JT9D turbofan engines, then General Electric CF6 and Rolls-Royce RB211 engines for the original variants. With a ten-abreast economy seating, it typically accommodates 366 passengers in three travel classes. It has a pronounced 37.5° wing sweep, allowing a Mach 0.85 (490 kn; 900 km/h) cruise speed, and its heavy weight is supported by four main landing gear legs, each with a four-wheel bogie. The partial double-deck aircraft was designed with a raised cockpit so it could be converted to a freighter airplane by installing a front cargo door, as it was initially thought that it would eventually be superseded by supersonic transports.

The Palace of the Parliament (Romanian: Palatul Parlamentului), initially designed during Communist times as the People's House (Casa Poporului) or (less frequently used) the House of the Republic (Casa Republicii), is the seat of the Parliament of Romania, located atop Dealul Spirii in Bucharest, the national capital. The Palace reaches a height of 84 m (276 ft), is 92 m (302 ft) deep underground, has a floor area of 365,000 m (3,930,000 sq ft) and a volume of 2,550,000 m (90,000,000 cu ft). The Palace of the Parliament is the heaviest building in the world, weighing about 4,098,500 tonnes (9.04 billion pounds), and is the largest civilian administrative building in the world, the largest military administrative building being the yet larger US Pentagon (cf. List of largest buildings). The Independent described it as the third best building in the world - "Hideous but also sort of impressive."

The building was designed and supervised by chief architect Anca Petrescu, with a team of approximately 700 architects, and constructed over a period of 13 years (1984–1997) in modernist Neoclassical architectural forms and styles, with socialist realism in mind. The Palace was ordered by Nicolae Ceaușescu (1918–1989), the president of Communist Romania.

The Boeing Everett Factory, officially the Everett Production Facility, is an airplane assembly facility operated by Boeing in Everett, Washington, United States. It sits on the north side of Paine Field and includes the largest building in the world by volume at over 472 million cubic feet (13,400,000 m), which covers 98.3 acres (39.8 ha).

The entire complex covers approximately 1,000 acres (400 ha) and spans both sides of State Route 526 (named the Boeing Freeway). The factory was built in 1967 for the Boeing 747 and has since been expanded several times to accommodate new airliners, including the 767, 777, and 787 programs. More than 5,000 widebody aircraft have been built at the Everett factory since it opened.

Gigafactory Texas (also known as Giga Texas, Giga Austin, or Gigafactory 5) is a Tesla, Inc. automotive manufacturing facility in unincorporated Travis County, Texas, just outside of Austin. Construction began in July 2020, limited production of Model Y began before the end of 2021, and initial deliveries of vehicles built at the factory took place at an opening party called "Cyber Rodeo" on April 7, 2022.

The factory produces Model Y cars for the Eastern United States and is also the main factory for the Cybertruck and the company's next-generation vehicle. It also serves as the site of Tesla's corporate headquarters. It is the country's second biggest factory by size as well as the second-largest building by volume in the world after the Boeing Everett Factory,

The O2 Arena, commonly known as the O2, is a multi-purpose indoor arena in the centre of The O2 entertainment district on the Greenwich Peninsula in southeast London, England. It opened in its present form in 2007. It has the third-highest seating capacity of any indoor venue in the United Kingdom, behind Co-op Live and Manchester Arena, and in 2008 was the world's busiest music arena.

The arena and broader complex were built within the former Millennium Dome, a large dome-shaped building intended for an exhibition celebrating the turn of the third millennium. As of 2022, it is the ninth-largest building in the world by volume with a diameter of 365 metres (399 yards) and a height of 52 metres (57 yards). It is named after its primary sponsor, the telecommunications company O2, a subsidiary of Virgin Media O2. The nearest tube station is North Greenwich on the Jubilee line.

Dubai International Airport (Arabic: مطار دبي الدولي) (IATA: DXB, ICAO: OMDB) is the primary international airport serving Dubai, United Arab Emirates, and is the world's busiest airport by international passenger traffic as of 2024. It is also the busiest airport in the Middle East as of 2024, the second-busiest airport in the world by passenger traffic as of 2024, the busiest airport for Airbus A380 and Boeing 777 movements, and the airport with the highest average number of passengers per flight. In 2024, the airport handled over 92 million passengers, over 2.2 million tonnes of cargo and registered over 440,000 aircraft movements.

The airport is situated in the Al Garhoud district, 2.54 nautical miles (4.70 km; 2.92 mi) east of the city center of Dubai and spread over an area of 1,750 hectares (4,300 acres) of land. Terminal 3 is the fourth-largest building in the world by floor space and the largest airport terminal in the world. In July 2019, the airport installed the largest solar energy system in the region's airports as part of Dubai's goal to reduce 30 per cent of the city energy consumption by 2030.

The Millennium Dome was the original name of the large dome-shaped building on the Greenwich Peninsula in South East London, England, which housed a major exhibition celebrating the beginning of the third millennium. When opened in 1999, it was the fifth largest building in the world by usable volume. The exhibition was open to the public from 1 January to 31 December 2000. The project and exhibition were highly contentious and attracted barely half of the 12 million customers its sponsors forecasted, and so were deemed a failure by the press. All the original exhibition elements were sold or dismantled.

In a 2005 report, the cost of the Dome and surrounding land (which increased to 170 acres from the initial offering of the 48 acres enclosed by the Dome) and managing the Dome until the deal was closed was £28.7 million. The value of the 48 acres occupied by the Dome was estimated at £48 million, which could have been realised by demolishing the structure, but it was considered preferable to preserve the Dome. The structure itself still exists and serves as the exterior to The O2 entertainment complex, which includes the O2 Arena.