The new air traffic control tower, dubbed Tower West, is the tallest of its kind in the world, standing 133.8m above land and 141.9m above sea level.

It has 33 floors and a rooftop where the Surface Movement Radar is located.

The ATCT has been recognised by the Guinness World Record as the tallest in the world, standing at 141.9m above sea level, beats the 132.2m tall air traffic control tower at Suvarnabhumi International Airport in Thailand, the second tallest in the world.

On 24 April, 2014, the new klia2 Air Traffic Control Tower (ATCT) was handed over to the Department of Civil Aviation (DCA) by the Malaysia Airports Holidng Berhad (MAHB).

According to wikipedia