Mecca Royal Hotel Clock Tower/ Abraj Al Bait/ Makkah Royal Clock Tower Hotel, 麥加皇家鐘塔飯店

At 1,971ft (601m) and 120 storeys, the Mecca Royal Hotel Clock Tower became the second tallest building in the world in 2012 (Fayez Nureldine/AFP/Getty Images)
BBC - Culture - Skyscrapers: The race to the top
http://www.bbc.com/culture/story/20141216-skyscrapers-the-race-to-the-top
摩天大樓的高度之爭何時到頭？ - BBC 主页
http://www.bbc.com/ukchina/trad/vert_cul/2016/03/160322_vert_cul_skyscrapers-the-race-to-the-top

Abraj Al Bait - Wikipedia, the free encyclopedia

The Abraj Al-Bait Towers, also known as the Makkah Royal Clock Tower Hotel