The CN Tower is a 553.3 m-high (1,815.3 ft) concrete communications and observation tower located in the downtown core of Toronto, Ontario, Canada. Built on the former Railway Lands, it was completed in 1976. Its name "CN" originally referred to Canadian National, the railway company that built the tower. Following the railway's decision to divest non-core freight railway assets prior to the company's privatization in 1995, it transferred the tower to the Canada Lands Company, a federal Crown corporation responsible for real estate development.
A skyscraper is a tall continuously habitable building having multiple floors. Modern sources currently define skyscrapers as being at least 100 metres or 150 metres in height, though there is no universally accepted definition. Skyscrapers are very tall high-rise buildings. Historically, the term first referred to buildings with between 10 and 20 stories when these types of buildings began to be constructed in the 1880s. Skyscrapers may host offices, hotels, residential spaces, and retail spaces.
The Taipei 101, formerly known as the Taipei World Financial Center, is a skyscraper designed by C.Y. Lee and C.P. Wang in Taipei, Taiwan. This building was officially classified as the world's tallest from its opening in 2004 until the 2009 completion of the Burj Khalifa in Dubai, UAE. Upon completion, it became the world’s first skyscraper to exceed a height of half-a-kilometre.
The Burj Al Arab is a luxury hotel located in the city of Dubai, United Arab Emirates. Managed by Jumeirah hotel group, it is one of the tallest hotels in the world, although 39% of its total height is made up of non-occupiable space. Burj Al Arab stands on an artificial island that is 280 m (920 ft) from Jumeirah Beach and is connected to the mainland by a private curving bridge. The shape of the structure is designed to resemble the sail of a ship. It has a helipad near the roof, at a height of 210 m (689 ft) above ground.
The Burj Khalifa, known as the Burj Dubai prior to its inauguration in 2010, is a skyscraper in Dubai, United Arab Emirates. With a total height of 829.8 m and a roof height of 828 m (2,717 ft), the Burj Khalifa has been the tallest structure and building in the world since its topping out in 2009, supplanting Taipei 101, the previous holder of that status.
Sky City 1000 is a proposed skyscraper for the Tokyo metropolitan area. It was announced in 1989 at the height of the Japanese asset price bubble.
The Mile-High Illinois, Illinois Sky City, or simply The Illinois is a visionary skyscraper that is proposed to be over 1 mile (1,600 m) high, conceived and described by American architect Frank Lloyd Wright in his 1957 book, A Testament. The design, intended to be built in Chicago, included 528 stories, with a gross area of 18,460,000 square feet (1,715,000 m2). Wright stated that there would be parking for 15,000 cars and 100 helicopters.
The Federation Tower is a complex of two skyscrapers built on the 13th lot of the MIBC in Moscow, Russia. The two skyscrapers are named Tower East or Vostok and Tower West or Zapad.
Nakheel Tower is a planned skyscraper on hold in Dubai, United Arab Emirates by developer Nakheel. The project was previously called Al Burj.
The Burj Al Alam was a proposed 108-story, 510 m (1,670 ft) hyperboloid skyscraper in the Business Bay area of Dubai, United Arab Emirates, though the project's roots are in a 101-storey design called "Fortune 101" and slated for the Dubai Marina area. It was designed to resemble a crystal flower. If constructed, it would have become one of the world's tallest buildings. The tower was one of the projects of the Fortune Group, which has a number of other projects in Dubai such as the Fortune Bay and Fortune Tower.
Silk City is a large infrastructure project in northern Kuwait which is currently under development. The project will be built in individual phases. In May 2019, the Sheikh Jaber Al-Ahmad Al-Sabah Causeway opened as part of the Silk City project's first phase, the project's first phase also includes Mubarak Al Kabeer Port which is currently under construction. The Silk City project is part of China's Belt and Road Initiative.
Jeddah Tower, previously known as Kingdom Tower, is a skyscraper construction project currently on hold. Located on the north side of Jeddah, Saudi Arabia, it is planned to be the world's first 1 km (3,281 ft) high building, and the centrepiece and first phase of a development and tourist attraction known as Jeddah Economic City.
The Dubai City Tower, also known as Dubai City, is a vision megatall skyscraper announced in 2009. The building is supposed to be 2,400 metres (7,900 ft) tall. The building, created by an architect to display possibly future technologies, is the fourth tallest building ever fully envisioned after The Arconic Tower, X-Seed 4000 and the Ultima Tower. If ever constructed, the Dubai City Tower will be much taller than any other current man-made structure, at almost three times the height of the Burj Khalifa, or almost seven times taller than the Empire State Building.
The tallest building in the world, as of 2021, is Burj Khalifa. The title of "world's tallest building" has been borne by various buildings, such as the Rouen Cathedral, the Empire State Building and the original World Trade Center.
The Azerbaijan Tower is a visionary megatall skyscraper that is intended to be constructed on the Khazar Islands, 25 km (16 mi) south of Baku, Azerbaijan.
Sky City, or Sky City One, was an 838-metre-tall (2,749 ft) planned skyscraper in the city of Changsha, Hunan in south-central China. The prospective builders, Broad Sustainable Building, estimated it would take just 90 days to construct. Including the 120 days required for prefabrication before on-site work commenced, the sum of time needed was 210 days. Pre-construction activities were halted in August 2013 after government regulators required additional approvals.
The Public Investment Fund (PIF) Tower is a 385 m (1,263 ft) skyscraper in Riyadh, Saudi Arabia. Construction started in 2010 and was topped-out in 2014, making it the tallest building in Riyadh, surpassing the Kingdom Centre and Burj Rafal. Designed by HOK and Omrania, the 76-story PIF Tower is one of the most high-tech skyscrapers in the world and the centerpiece of the King Abdullah Financial District.
