History of the world's tallest buildings
The buildings that were the tallest secular skyscrapers, which excludes religious buildings, were:
The list of tallest buildings is based on the default metric of the Council on Tall Buildings and Urban Habitat (CTBUH), that of measuring to the highest architectural element. Other criteria would generate a different list. Shanghai World Financial Center is not on the above list, but it surpassed Taipei 101 in 2008 to become the building with the highest occupied floor. Using the criteria of highest tip (including antennae), the World Trade Center in New York City was the world's tallest building from 1972 to 2000, until the Sears Tower in Chicago (which already had a higher occupied floor than the World Trade Center) had its antenna extended to give that building the world's tallest tip; a title it held until the 2010 completion of Burj Khalifa. Petronas Towers and Taipei 101 were never the world's tallest buildings by the highest–tip criteria.
Taipei
Taipei 101 is a 101-floor landmark skyscraper that claimed the title of world's tallest building when it opened in 2004, a title it held for six years before relinquishing it to the Burj Khalifa in Dubai. Designed by C.Y. Lee & Partners and constructed by KTRT Joint Venture, Taipei 101 measures from ground to top, making it the first skyscraper in the world to break the half-kilometer mark in height. Built to withstand typhoon winds and earthquake tremors, its design incorporates many engineering innovations and has won numerous international awards. Taipei 101 remains one of the tallest skyscrapers in the world and holds LEED's certification as the world's largest "green" building. Its shopping mall and its indoor and outdoor observatories draw visitors from all over the world. Taipei 101's New Year's Eve fireworks display is a regular feature of international broadcasts.