Since 2010, the 829.8 metre Burj Khalifa in Dubai has been considered the world’s tallest building. Which of the ambitious projects in various stages of development and construction around the world will ultimately take its crown as tallest? Well, that depends upon what you mean by “building” and how you define “tallest”. It’s complicated, and ambitious architects and promoters tend to have a bit of the grifter in their makeup.
Excellent video. Regarding the Sears-Petronas controversy and similar starting at about 2:35 in, there is another consideration.
IIRC, they don’t allow remeasurement or redefinition. This was intended to prevent dangerous additions to existing buildings. However, there is a consequence that if an antenna mast was on building A when built but not included in official height when building A was built but later building B’s antenna mast was included when building B was built, building A can’t remeasure its height to compare
