Top 10 Tallest Building in the world 2014 / 2015

Here is the list of the tallest building in the world. This list includes the buildings which are either built or topped out
This List includes the following buildings
Burj Khalifa
Shanghai Tower
Makkah Royal Clock Tower Hotel
One World Trade Center
Taipei 101
Sangahi World Financial Center
International Commerce Center
Petronas Twin Tower
Zifeng Tower
Willis Tower

Biggest
largest,
tallest,
huge,
Most expensive