4. Abraj Al-Bait Clock Tower, Saudi Arabia- 601 Meters
Abraj Al-Bait Clock Tower, completed in 2012, stands 601 meters tall with 120 floors and is part of a massive government-owned complex near the Masjid al-Haram.
Developed by the Saudi Binladin Group, it houses the Fairmont Makkah Clock Royal Tower hotel, luxury residences, and a large shopping mall.
The tower features the world’s largest clock face—43 meters in diameter—visible from over 25 kilometers away. It also contains an Islamic Museum and a lunar observation center. As one of the tallest buildings globally, it plays a key role in serving millions of annual Hajj pilgrims.