type that might use some external support constructions like cables and are fully built in air. Only the three tallest are listed, as more than fifty US TV masts have stated heights of . The structures (media supported) list uses pinnacle height and includes architectural structures of any type that are not totally built in the air but are using support from other, denser media like salt water. All structures greater than are listed. The freestanding structures list uses pinnacle height and includes structures over that do not use guy-wires or other external supports. This means truly free standing on its own or, in similar sense, non-supported structures. The building list uses architectural height (excluding antennas) and includes only buildings, defined as consisting of habitable floors. Both of these follow CTBUH guidelines. All supertall buildings (450 m and higher) are listed. Notes: Eight buildings appear on the freestanding structures category list with heights different from another category. This is due to the different measurement specifications of those lists. Only current heights and, where reasonable, target heights are listed. Historical heights of structures that no longer exist, for example, for having collapsed, are excluded. Source: Emporis See also List of tallest buildings List of tallest towers List of tallest structures List of tallest freestanding structures List of tallest freestanding steel structures List of tallest chimneys List of tallest bridges List of tallest dams Lattice tower Solar power tower Tallest industrial buildings List of elevator test towers List of hyperboloid structures List of tallest cooling towers List of tallest oil platforms List of tallest statues List of tallest minarets List of tallest church buildings List of tallest wooden buildings List of tallest clock towers List of tallest residential buildings List of tallest hotels List of tallest hospitals List of tallest educational buildings List of tallest structures built before the 20th century References External links Tallest Buildings in the Islamic World (2017) Collection of many record holders on Skyscraperpage tallestbuildingintheworld.net A map visualization of each country's tallest building The highest abandoned skyscraper in the world Structures Tallest