World's Tallest Buildings (Top 10)

 1. Burj Khalifa 

• Location : Dubai, UAE
• Height : 828 m(2,717 ft)
• Floors : 163
• Built : 2010

2. Shanghai Tower

• Location : Shanghai, China
• Height : 632m(2073 ft)
• Floors : 121
• Built : 2014

3. Makkah Royal Clock Tower Hotel   

• Location : Mecca, Saudi Arabia
• Height : 601m(1,971 ft)
• Floors : 120
• Built : 2012

4. One World Trade Center

• Location : New York City, USA
• Height : 541.3 m(1,776 ft)
• Floors : 104
• Built : 2013

5. Taipei 101

• Location : Taipei, Taiwan
• Height : 509m(1,670ft)
• Floors : 101
• Built : 2004

6. Shanghai World Financial Center

• Location : Shanghai, China
• Height : 492m(1,614ft)
• Floors : 101
• Built : 2008

7. International Commerce Centre

• Location : Hong Kong, Hong Kong
• Height : 484m(1,588ft)
• Floors : 118
• Built : 2010

8. Petronas Towers

• Location : Kuala Lumpur, Malaysia
• Height : 452m(1,483ft)
• Floors : 88
• Built : 1998

9. Zifeng Tower

• Location : Nanjing, China
• Height : 450m(1,476ft)
• Floors : 89
• Built : 2010

10. Willis Tower (Formerly Sears Tower)

• Location : Chicago, USA
• Height : 442m(1,450ft)
• Floors : 108
• Built : 1973

Source :- http://www.unbelievableinfo.com/2014/01/worlds-tallest-buildings-top-10.html