Spoiler warning! Answers below...
1. Taipei 101, Taiwan
2. Torre Agbar, Barcelona, Spain
3. Burj Khalifa, Dubai, UAE
4. Turning Torso, Malmo, Sweden
5. Shanghai World Financial Center, China
6. Petronas Towers, Kuala Lumpur, Malaysia
7. China Central Television Headquarters, Beijing, China
8. The Shard, London, UK
9. Chrysler Building, New York, USA
10. CN Tower, Toronto, Canada Photograph: FUTURE LIGHT/Getty Images