1. Burj Khalifa (Dubai) – Skidmore, Owings & Merrill (SOM)
2. Guggenheim Museum (Bilbao) – Frank Gehry
3. Sydney Opera House (Sydney) – Jørn Utzon
4. Taj Mahal (Agra) – Ustad Ahmad Lahori
5. Fallingwater (Pennsylvania) – Frank Lloyd Wright
6. Eiffel Tower (Paris) – Gustave Eiffel
7. Colosseum (Rome) – Vespasian and Titus
8. Louvre Pyramid (Paris) – I.M. Pei
9. Empire State Building (New York) – Shreve, Lamb & Harmon
10. Casa Batlló (Barcelona) – Antoni Gaudí
11. Chrysler Building (New York) – William Van Alen
12. Golden Gate Bridge (San Francisco) – Joseph Strauss and Irving Morrow
13. St. Peter’s Basilica (Vatican City) – Donato Bramante, Michelangelo, and Carlo Maderno
14. The White House (Washington D.C.) – James Hoban
15. The Gherkin (London) – Norman Foster
Please note that some buildings have multiple architects involved, but I’ve only listed the most prominent one. Let me know if you’d like me to expand the list!
