A skyscraper is a tall continuously habitable building having multiple floors. Modern sources define skyscrapers as being at least 100 meters (330 ft) or 150 meters (490 ft) in height, though there is no universally accepted definition, other than being very tall high-rise buildings. Skyscrapers may host offices, hotels, residential spaces, and retail spaces.
The X-Seed 4000 was a concept for a megatall skyscraper. Its proposed 4-kilometre (2.5 mi) height, 6-kilometre-wide (3.7 mi) sea-base, and 800-floor capacity could accommodate 500,000-1,000,000 inhabitants. This structure would have been composed of over 3 million t of steel.
Nikken Sekkei Ltd. (日建設計) is an architectural, planning and engineering firm from Japan, with headquarters in Chiyoda, Tokyo. Today (2019), Nikken Sekkei ranks as the second largest architectural practice in the world.
Shinjuku Sumitomo Building is a high-rise building in Nishi-Shinjuku, Shinjuku, Tokyo, Japan.
The Shinjuku Mitsui Building is a high-rise building in Nishi-Shinjuku, Shinjuku, Tokyo. It is owned by Mitsui Fudosan. It is one of the ten tallest buildings in Tokyo, and was the tallest building in Tokyo and Japan from September 1974 to March 1978, when Sunshine 60 was completed.
The tallest building in the world, as of 2024, is the Burj Khalifa in Dubai. The title of "world's tallest building" has been held by various buildings in modern times, including Lincoln Cathedral in Lincoln, England, and the Empire State Building and the original World Trade Center, both in New York City.
Stadthaus is a nine-storey residential building in Hackney, London, completed in 2009. With nine stories, it was considered the second tallest timber residential building made of wood in the world at the time of its construction, after the Forte apartment complex in Melbourne, Australia. It was designed in collaboration between architects Waugh Thistleton, structural engineers Techniker, and timber panel manufacturer KLH.
Freedom Tower is a skyscraper located in front of the Diana Fountain roundabout at Paseo de la Reforma 439, Colonia, Cuauhtémoc, Delegación Cuauhtémoc in Mexico City. Its construction began in November 2004 and completed in January 2008. The tower started operating in June of that same year. The building has a commercial area on the third floor, and a seven-level underground parking garage with a capacity for 2,000 cars.
A plyscraper, or timber tower is a skyscraper made of wood. They may alternatively be known as mass timber buildings.
The Ark Hills Sengokuyama Mori Tower (アークヒルズ仙石山森タワー) is a 206.7 m (678 ft) mixed-use skyscraper in Roppongi, Minato ward, Tokyo. The building was designed by Irie Miyake Architects and Engineers and Pelli Clarke Pelli Architects; Mori Building Company was the developer, while the construction process was managed by Obayashi Corporation. Construction of the tower started in 2009 and was completed in 2012.
Carbon12 is a wooden building in Portland, Oregon's Eliot neighborhood, in the United States. The eight-story structure built with Oregon-made cross-laminated timber (CLT) became the tallest wood building in the United States upon its completion.
Mjøstårnet is an 18-storey mixed-use building in Brumunddal, Norway, completed in March 2019. At the time of completion, it was officially the world's tallest wooden building, at 85.4 m (280 ft) tall, before being surpassed by Ascent MKE in August 2022. Mjøstårnet translates as "the tower of lake Mjøsa". The building is named after Norway's biggest lake, which is 100 km away from Oslo.
Sumitomo Forestry is a Japanese logging and processing company. It is also engaged in the construction of houses made of wooden materials. The company is included in the Sumitomo Group keiretsu.
Brock Commons Tallwood House is an 18-storey student residence at the Point Grey Campus of the University of British Columbia (UBC) in Canada. At the time it was opened, it was the tallest mass timber structure in the world.
Ascent MKE is a mass timber hybrid high-rise apartment building in Milwaukee, Wisconsin. The 284-foot, 25-story high-rise is the world's tallest mass timber structure, edging out Norway's Mjøstårnet. It features 259 luxury apartments, retail space, an elevated pool with operable window walls, and a sky-deck.
Japan