The Petronas Towers are twin skyscrapers in Kuala Lumpur, Malaysia. According to the Council on Tall Buildings and Urban Habitat (CTBUH)’s official definition and ranking, they were the tallest buildings in the world from 1998 to 2004 and remain the tallest twin towers in the world. The buildings are a landmark of Kuala Lumpur, along with nearby Kuala Lumpur Tower.
The Petronas Towers were the tallest buildings in the world for six years, until Taipei 101 was completed in 2004. The height of the towers is measured to the top of their structural components such as spires, but do not include antennas. Spires are considered actual integral parts of the architectural design of buildings, to which changes would substantially change the appearance and design of the building, whereas antennas may be added or removed without such consequences. The Petronas Towers still remain the tallest twin buildings in the world.
Tower One is fully occupied by Petronas and a number of its subsidiaries and associate companies, while the office spaces in Tower Two are mostly available for lease to other companies. A number of companies have offices in Tower Two, including Huawei Technologies, AVEVA, Al Jazeera English, Carigali Hess, Bloomberg, Boeing, IBM, Khazanah Nasional Berhad, McKinsey & Co, WIPRO Limited, TCS, HCL Technologies, Krawler, Microsoft, The Agency (a modelling company) and Reuters.
Each tower weighs 300,000 tonnes which is equal to 43,000 elephants
The sky-walk on the 42nd and 43rd floors is also the world’s highest sky-bridge which connects the two towers.
The building which is 452m high has 88 floors and 32000 windows
When seen from the top the tower resembles the eight point star which in Islam stands for unity, harmony, stability, and rationality.
Kingdom Center is a 41-storey, 302.3 m skyscraper in Riyadh, Saudi Arabia. It is the third tallest skyscraper in the country after the Abraj Al Bait Towers and the Burj Rafal, and is the world’s third tallest building with a hole after the Shanghai World Financial Center and Tuntex Sky Tower.
Besides the shopping mall, Kingdom Tower contains the Four Seasons Hotel Riyadh and apartments. There is a 56 m sky bridge atop the skyscraper.
The building is situated on 100,000 square metres site with car parking for 3,000 vehicles.
The upper third of the tower features an inverted parabolic arch. The building utilities butt jointed glazing combined with the lack of both distinguished floor lines and other tall buildings around it. The lower two thirds were constructed with a reinforced concrete frame while the top third has a tubular steel frame.
The architectural model maker of the Center was Richard Tenguerian.
The inverted arch at the top was described by the developer as the city’s “necklace”, because the opening is lined with aluminum to highlight the unique shape in contrast all of the facade in reflective blue glass.
The main lobby is a elliptical space with ribbed vaulting, elevated walkways, a fountain, and rows of palm trees. This elliptical form is a footprint used overall in the building objects and decoration.
The Kingdom Center has won an important award in 2002 for its design.
The original design called for a tower of 296.3 meters, but it was later increased.