The world's tallest human-made structure is the 828-metre-tall (2,717 ft) Burj Khalifa in Dubai, United Arab Emirates. The building gained the official title of "tallest building in the world" and the tallest self-supported structure at its opening on January 9, 2010. The second-tallest structure in the world is the 679-metre-tall (2,227 ft) Merdeka 118 in Kuala Lumpur, Malaysia, while the third-tallest self-supporting structure and the tallest tower in the world is the Tokyo Skytree (634 m or 2,080 ft). The tallest guyed structure is the KRDK-TV mast in North Dakota, U.S. at 630 metres (2,060 ft).
The Council on Tall Buildings and Urban Habitat, an organization that certifies buildings as the "World's Tallest", recognizes a building only if at least 50% of its height is made up of floor plates containing habitable floor area.[1] Structures that do not meet this criterion, such as the CN Tower, are defined as "towers".
There are dozens of radio and television broadcasting towers which measure over 600 metres (about 2,000 ft) in height, and only the tallest are recorded in publicly available information sources.
- ^ "CTBUH Height Criteria for Measuring & Defining Tall Buildings" (PDF). Council on Tall Buildings and Urban Habitat. p. 5. Archived (PDF) from the original on November 9, 2024. Retrieved November 9, 2024.