Burj Khalifa in Dubai is the tallest building in the world, with a height of around 830 metres and 163 floors. It is followed by Merdeka 118 in Malaysia's Kuala Lumpur (679 metres, 118 floors), Shanghai Tower in China's Shanghai (632 metres, 128 floors), Makkah Royal Clock Tower in Saudi Arabia's Mecca (601 metres, 120 floors) and more.