<Li> 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 . </Li> <Li> 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 . </Li> <Table> <Tr> <Th> Rank </Th> <Th> Name and location </Th> <Th> Year completed </Th> <Th> Architectural top (metres) </Th> <Th> Architectural top (feet) </Th> <Th> Floors </Th> </Tr> <Tr> <Th_colspan="6"> Structures (supported) Main article: List of tallest structures </Th> </Tr> <Tr> <Td> </Td> <Td> KVLY - TV mast, Blanchard, North Dakota, United States </Td> <Td> 1963 </Td> <Td> 629 </Td> <Td> 2,064 </Td> <Td>--</Td> </Tr> <Tr> <Td> </Td> <Td> KXJB - TV mast, Galesburg, North Dakota, United States </Td> <Td> 1998 </Td> <Td> 628 </Td> <Td> 2,060 </Td> <Td>--</Td> </Tr> <Tr> <Td> </Td> <Td> KXTV / KOVR Tower, Walnut Grove, California, United States </Td> <Td> 2000 </Td> <Td> 625 </Td> <Td> 2,051 </Td> <Td>--</Td> </Tr> <Tr> <Th_colspan="6"> Structures (media supported) </Th> </Tr> <Tr> <Td> </Td> <Td> Petronius Platform, Gulf of Mexico </Td> <Td> 2000 </Td> <Td> 610 </Td> <Td> 2,000 </Td> <Td>--</Td> </Tr> <Tr> <Td> </Td> <Td> Baldpate Platform, Gulf of Mexico </Td> <Td> 1998 </Td> <Td> 580 </Td> <Td> 1,900 </Td> <Td>--</Td> </Tr> <Tr> <Td> </Td> <Td> Bullwinkle Platform, Gulf of Mexico </Td> <Td> 1989 </Td> <Td> 529 </Td> <Td> 1,736 </Td> <Td>--</Td> </Tr> <Tr> <Th_colspan="6"> Freestanding structures Main article: List of tallest freestanding structures </Th> </Tr> <Tr> <Td> </Td> <Td> Burj Khalifa, Dubai, United Arab Emirates </Td> <Td> 2009 </Td> <Td> 829.8 </Td> <Td> 2,722 </Td> <Td> 163 </Td> </Tr> <Tr> <Td> </Td> <Td> Tokyo Skytree, Tokyo, Japan </Td> <Td> 2012 </Td> <Td> 634 </Td> <Td> 2,080 </Td> <Td>--</Td> </Tr> <Tr> <Td> </Td> <Td> Shanghai Tower, Shanghai, China </Td> <Td> 2015 </Td> <Td> 632 </Td> <Td> 2,073 </Td> <Td> 128 </Td> </Tr> <Tr> <Td> </Td> <Td> Abraj Al Bait, Makkah, Saudi Arabia </Td> <Td> 2011 </Td> <Td> 601 </Td> <Td> 1,972 </Td> <Td> 120 </Td> </Tr> <Tr> <Td> 5 </Td> <Td> Ping An Finance Centre, Shenzhen, China </Td> <Td> 2016 </Td> <Td> 599 </Td> <Td> 1,965 </Td> <Td> 115 </Td> </Tr> <Tr> <Td> 6 </Td> <Td> Goldin Finance 117, Tianjin, China </Td> <Td> 2016 </Td> <Td> 597 </Td> <Td> 1,959 </Td> <Td> 117 </Td> </Tr> <Tr> <Td> 7 </Td> <Td> Canton Tower, Guangzhou, China </Td> <Td> </Td> <Td> 600 </Td> <Td> 1,969 </Td> <Td>--</Td> </Tr> <Tr> <Td> 8 </Td> <Td> Lotte World Tower, Seoul, South Korea </Td> <Td> 2016 </Td> <Td> 555 </Td> <Td> 1,821 </Td> <Td> 123 </Td> </Tr> <Tr> <Td> 9 </Td> <Td> CN Tower, Toronto, Ontario, Canada </Td> <Td> 1976 </Td> <Td> 553 </Td> <Td> 1,814 </Td> <Td>--</Td> </Tr> <Tr> <Td> 10 </Td> <Td> One World Trade Center, New York City, USA </Td> <Td> 2013 </Td> <Td> 541.3 </Td> <Td> 1,776 </Td> <Td> 104 </Td> </Tr> <Tr> <Td> 11 </Td> <Td> Ostankino Tower, Moscow, Russia </Td> <Td> 1967 </Td> <Td> 540 </Td> <Td> 1,770 </Td> <Td>--</Td> </Tr> <Tr> <Td> 12 </Td> <Td> Guangzhou CTF Finance Centre, Guangzhou, China </Td> <Td> 2016 </Td> <Td> 530 </Td> <Td> 1,739 </Td> <Td> 111 </Td> </Tr> <Tr> <Td> 13 </Td> <Td> Willis Tower, Chicago, United States </Td> <Td> </Td> <Td> 527 </Td> <Td> 1,729 </Td> <Td> 108 </Td> </Tr> <Tr> <Td> 14 </Td> <Td> Taipei 101, Taipei, Taiwan </Td> <Td> </Td> <Td> 509 </Td> <Td> 1,670 </Td> <Td> 101 </Td> </Tr> <Tr> <Th_colspan="6"> Buildings Main article: List of tallest buildings in the world </Th> </Tr> <Tr> <Td> </Td> <Td> Burj Khalifa, Dubai, United Arab Emirates </Td> <Td> </Td> <Td> 828 </Td> <Td> 2,717 </Td> <Td> 163 </Td> </Tr> <Tr> <Td> </Td> <Td> Shanghai Tower, Shanghai, China </Td> <Td> 2015 </Td> <Td> 632 </Td> <Td> 2,073 </Td> <Td> 128 </Td> </Tr> <Tr> <Td> </Td> <Td> Abraj Al Bait, Mecca, Saudi Arabia </Td> <Td> 2011 </Td> <Td> 601 </Td> <Td> 1,972 </Td> <Td> 120 </Td> </Tr> <Tr> <Td> </Td> <Td> Ping An Finance Centre, Shenzhen, China </Td> <Td> 2016 </Td> <Td> 599 </Td> <Td> 1,965 </Td> <Td> 115 </Td> </Tr> <Tr> <Td> 5 </Td> <Td> Lotte World Tower, Seoul, South Korea </Td> <Td> 2016 </Td> <Td> 555 </Td> <Td> 1,821 </Td> <Td> 123 </Td> </Tr> <Tr> <Td> 6 </Td> <Td> One World Trade Center, New York City, USA </Td> <Td> 2013 </Td> <Td> 541.3 </Td> <Td> 1,776 </Td> <Td> 104 </Td> </Tr> <Tr> <Td> 7 </Td> <Td> Guangzhou CTF Finance Centre, Guangzhou, China </Td> <Td> 2016 </Td> <Td> 530 </Td> <Td> 1,739 </Td> <Td> 111 </Td> </Tr> <Tr> <Td> 8 </Td> <Td> Taipei 101, Taipei, Taiwan </Td> <Td> </Td> <Td> 509 </Td> <Td> 1,670 </Td> <Td> 101 </Td> </Tr> <Tr> <Td> 9 </Td> <Td> Shanghai World Financial Center, Shanghai, China </Td> <Td> 2008 </Td> <Td> 492 </Td> <Td> 1,614 </Td> <Td> 101 </Td> </Tr> <Tr> <Td> 10 </Td> <Td> International Commerce Centre, Hong Kong </Td> <Td> </Td> <Td> 484 </Td> <Td> 1,588 </Td> <Td> 118 </Td> </Tr> <Tr> <Td> 11 </Td> <Td> Changsha IFS Tower T1, Changsha, China </Td> <Td> 2017 </Td> <Td> 452.1 </Td> <Td> 1,483 </Td> <Td> 88 </Td> </Tr> <Tr> <Td> 12 </Td> <Td> Petronas Towers, Kuala Lumpur, Malaysia </Td> <Td> 1998 </Td> <Td> 451.9 </Td> <Td> 1,483 </Td> <Td> 88 </Td> </Tr> <Tr> <Td> 13 </Td> <Td> Zifeng Tower, Nanjing, China </Td> <Td> 2009 </Td> <Td> 450 </Td> <Td> 1,480 </Td> <Td> 89 </Td> </Tr> <Tr> <Td> 13 </Td> <Td> Suzhou IFS, Suzhou, China </Td> <Td> 2017 </Td> <Td> 450 </Td> <Td> 1,476 </Td> <Td> 92 </Td> </Tr> </Table> <Tr> <Th> Rank </Th> <Th> Name and location </Th> <Th> Year completed </Th> <Th> Architectural top (metres) </Th> <Th> Architectural top (feet) </Th> <Th> Floors </Th> </Tr>

What is the second biggest tower in the world