And there were quite a few responses that caught me by surprise! Here are some of the top-voted answers:
1. Amsterdam
2. Hollywood
3. Naples, Italy
4. Paris
5. Marrakesh, Morocco
6. Houston
7. Beijing
8. New Orleans
9. Venice
10. Dubai, the United Arab Emirates
11. Atlantic City
12. Bali
13. Brussels
14. Las Vegas
15. Niagara Falls (New York and Ontario)
16. Manila
17. Cairo
18. San Francisco
19. Philadelphia
20. Athens
21. And finally, New York City
Have you ever visited a city that totally disappointed you? LMK in the comments below!
Note: Some responses have been edited for length and/or clarity.