History of the world's tallest buildings
The tallest building in the world, as of 2022, is Burj Khalifa. The title of "world's tallest building" has been borne by various buildings, such as the Rouen Cathedral and the Empire State Building.
List of tallest buildings by height to roof
This list of tallest buildings in the world by height to roof ranks completed skyscrapers by height to roof which reach a height of 350 metres (1,148 ft) or more. Only buildings with continuously occupiable floors are included, thus non-building structures including towers, are not included. Some assessments of the tallest building use 'height to roof' to determine tallest building in the world, as 'architectural feature' is regarded as a subjective and an imprecise comparative measure. However, in November 2009, the CTBUH stopped using the roof height as the metric for tall buildings because modern tall buildings rarely have a part of the building that can categorically be deemed the roof.