Top 10 tallest buildings in the world. 10. A Braj Albaic Clock Tower, Mecca. 9. Guangzhou CTF Finance Center, Guangzhou. 8. One World Trade Center, New York City. 7. Lotte World Tower, Seoul. 6. Pingan International Financial Center, Xinjiang. 5. Tianjin CTF Finance Center, Xinjiang. 4. Shanghai World Financial Center, Shanghai. 3. Golden Finance, 117 Xinjiang. 2. Morrison Medika Tower, Malaysia. 1. Burj Khalifa, Dubai.