Oslo ranked world's most expensive cities for tourists, Sofia cheapest

Norway's capital Oslo is the most expensive in the world for tourists, a new survey has found.

The Norwegian capital is ranked as the most expensive for a night out on the town at 561.26 dollars, according to a cost comparison of the world's key cities.

The survey found that Sydney, costing 445.64 dollars for a night out, ranked No. 6 among the European-dominated mix of priciest places.

Zurich was ranked at No. 2, Stockholm at No. 3, Paris at No. 5, London at No. 7 and Copenhagen at No. 8.

According to the Age, the TripAdvisor TripIndex Cities is based on the cost of a couple staying one night in a four-star hotel, cocktails, a two-course dinner with a bottle of wine, and return taxi fare of 3.2 kilometres each way.

The survey found that South-east Asia, meanwhile, claimed three cities in the 10 least expensive destinations.

Hanoi ranked at number 2, Bangkok at number 6 and Kuala Lumpur at number 7 were among the least expensive countries.

Sofia in Bulgaria was ranked the cheapest city overall at 153.21 dollars for a night of revelry.

A TripAdvisor spokesman said that Asia is the most affordable continent, while Europe is the most expensive, but some European cities - like Sofia, Warsaw and Budapest - are bucking this trend.

The spokeswoman said that while Singapore was ranked as 10th most expensive last year, it fell four places to be ranked 14th most expensive of these worldwide cities.

Sofia was also ranked No. 1 for the cheapest hotel room at 93.05 dollars a night, while New York City was the most expensive at 366.46 dollars a night.

The list of 10 most expensive cities is as follows:

1. Oslo, Norway $561.26

2. Zurich, Switzerland $506.45

3. Stockholm, Sweden $504.30

4. New York City, US $498.58

5. Paris, France $494.96

6. Sydney, Australia $445.64

7. London, Britain $437.40

8. Copenhagen, Denmark $429.55

9. Cancun, Mexico $426.09

10. Punta Cana, Dominican Republic $420.91

The list of 10 cheapest cities:

1. Sofia, Bulgaria $153.21

2. Hanoi, Vietnam $170.12

3. Warsaw, Poland $181.73

4. Sharm el Sheikh, Egypt $184.74

5. Budapest, Hungary $186.46

6. Bangkok, Thailand $194.79

7. Kuala Lumpur, Malaysia $210.30

8. Tunis, Tunisia $211.51

9. Cape Town, South Africa $212.49

10. Riyadh, Saudi Arabia $212.