10. Rio de Janeiro, Brazil: (cost of 3-day tour: $1,030) (Source: TripAdvisor)
9. Rome, Italy: (cost of 3-day tour: $1,037)
8. Sydney, Australia: (cost of 3-day tour: $1,122)
7. Hong Kong, China: (cost of 3-day tour: $1,135)
6. Singapore: (cost of 3-day tour: $1,188)
5. Paris, France: (cost of 3-day tour: $1,232)
4. Cancun, Mexico: (cost of 3-day tour: $1,364)
3. London, UK: (cost of 3-day tour: $1,411)
2. Tokyo, Japan: (cost of 3-day tour: $1,519)
1. New York, US: (cost of 3-day tour: $1,826) (Source: TripAdvisor)
