1. The Willis Tower in Chicago, USA.
2. The Petronas Towers in Kuala Lumpur, Malaysia.
3. The Shard in London, UK.
4. The Burj Khalifa in Dubai, UAE.
5. The Lotte World Tower in Seoul, South Korea.
6. One World Trade Center in New York City, USA.
7. The Guangzhou CTF Financial Centre in Guangzhou, China.
8. The Marina Bay Sands in Singapore.
9. The Shanghai Tower in Shanghai, China.
10. The Kingdom Centre in Riyadh, Saudi Arabia.
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