10 Tallest Buildings In The World (2017)

#3 MAKKAH ROYAL CLOCK TOWER, SAUDI ARABIA – 1972 Feet

1,972 feet high Royal Clock Tower, located in Mecca, the Holy City of Islam, is the 3rd tallest building in the world. This building includes a clock, having an area of 141 square feet, making it the biggest clock in the world. To signalize the times of prayer it includes 21000 green and white lights which can be seen from 19 miles away.