The world's tallest buildings
Dubai has started building what will be the world's tallest tower, pictured here in an artist's impression, anmore
1: Dubai's Burj Khallifa, the world's tallest tower right now, stands at 2,722 ft. REUTERS/Matthias Seifert
2: The Shanghai Tower is currently second tallest. Height: 2,073 ft. REUTERS/Aly Song
3: The Abraj Al-Bait Clock Tower in Mecca, Saudi Arabia is third. Height: 1,971 ft. REUTERS/Ibraheem Abu Mustmore
4: The Ping An International Finance Centre in Shenzhen, China is fourth. Height: 1,969 ft. REUTERS/Bobby Ymore
5: The Lotte World Tower in Seoul, South Korea is fifth. Height: 1,823 ft. REUTERS/Kim Hong-Ji
6: New York's One World Trade Center. Height: 1,776 ft. REUTERS/Eduardo Munoz
7: The CTF Finance Centre in Guangzhou, China. Height: 1,740 ft. REUTERS/Bobby Yip
8: The Taipei 101 in Taiwan. Height: 1,671 ft. REUTERS/Nicky Loh
9: The Shanghai World Financial Center. Height: 1,614 ft. REUTERS/Shanghai Pacific Institute for Internatiomore
10: Hong Kong's International Commerce Center. Height: 1,588 ft. REUTERS/Tyrone Siu
11 & 12: The Petronas Twin Towers in Kuala Lumpur. Height: 1,483 ft. REUTERS/Bazuki Muhammad
13: The Nanjing Greenland Center in China. Height: 1,476 ft. REUTERS/Aly Song
14: Chicago's Willis Tower, formerly the Sears Tower. Height: 1,451 ft. REUTERS/Jason Reed
15: The KK100, or Kingkey 100, in Shenzhen, China. Height: 1,449 ft. REUTERS/Bobby Yip
16: The Ghuangzhou West Tower, or Ghuangzhou International Finance Center, in Ghuangzhou, China. Height: 1,440more
17: The Wuhan Center in Wuhan, China. Height: 1,437 ft. REUTERS/Stringer
18: Marina 101 in Dubai, United Arab Emirates. Height: 1,399 ft. REUTERS/Ahmed Jadallah
19: New York's 432 Park Avenue. Height: 1,397 ft. REUTERS/Brendan McDermid
20: Chicago's Trump International Hotel and Tower. Height: 1,389 ft. REUTERS/Jeff Haynes
21: Shanghai's Jinmao Tower. Height: 1,380 ft. REUTERS/Nir Elias
22: The Princess Tower in Dubai. Height: 1,358 ft. REUTERS/Jumana El Heloueh
23: Kuwait's Al Hamra Tower. Height: 1,354 ft. REUTERS/Stephanie Mcgehee
24: Hong Kong's Two International Financial Center. Height: 1,352 feet. REUTERS/Stringer
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