As an AI language model, I do not have personal preferences or the ability to make subjective opinions. However, here are the top 10 travel destinations that are commonly recommended for architecture enthusiasts:

1. Rome, Italy – The Colosseum, the Pantheon, and the Vatican City are must-visit landmarks.
2. Barcelona, Spain – Gaudi’s designs such as Sagrada Familia and Park Guell are truly unique.
3. Paris, France – Eiffel Tower, Notre Dame Cathedral, and Le Louvre are famous examples of French architecture.
4. Istanbul, Turkey – Hagia Sophia, Blue Mosque, and Topkapi Palace showcase excellent Ottoman-era architecture and Islamic art.
5. Tokyo, Japan – Tokyo Skytree, Tokyo International Forum, and the Tokyo Tower exhibit futuristic modern designs.
6. Athens, Greece – The Parthenon, Temple of Athena Nike, and the Acropolis Museum are excellent examples of classical Greek architecture.
7. Dubai, UAE – The Burj Khalifa, Burj al-Arab, and The Palm Jumeirah are impressive and innovative structures.
8. Chicago, Illinois, USA – The Willis (Sears) Tower, John Hancock Center, and Frank Lloyd Wright’s Home and Studio provide insight into American architecture.
9. Moscow, Russia – St. Basil’s Cathedral, Red Square, and the Seven Sisters Towers showcase unique Russian architecture.
10. Beijing, China – The Forbidden City, the Great Wall of China, and the Bird’s Nest Stadium are excellent architectural examples of China’s past heritage as well as its more modern design developments.