These 20 cities attract millions of visitors from all around the world each year.

Mastercard recently released its Global Destination Cities Index, which provides a ranking of the 132 most visited cities around the world.

Measured by the number of international overnight visitors, the study predicts which countries will be the most visited in 2016.

Here are the 20 cities that will see the highest numbers of visitors this year: 

20. Prague, Czech Republic - 5.81 million visitors

19. Shanghai, China - 6.12 million visitors

18. Vienna, Austria - 6.69 million visitors

17. Osaka, Japan - 7.02 million visitors

16. Rome, Italy - 7.12 million visitors

15. Taipei, Taiwan - 7.5 million visitors

14. Milan, Italy - 7.65 million visitors

13. Amsterdam, Netherlands - 8 million visitors

12. Barcelona, Spain - 8.20 million visitors

11. Hong Kong, China - 8.37 million visitors

10. Seoul, South Korea - 10.20 million visitors

9. Tokyo, Japan - 11.70 million visitors

8. Istanbul, Turkey - 11.95 million visitors

7. Kuala Lumpur, Malaysia - 12.02 million visitors

6. Singapore - 12.11 million visitors

5. New York City, USA - 12.75 million visitors

4. Dubai, United Arab Emirates - 15.27 million visitors

3. Paris, France - 18.03 million visitors

2. London, England - 19.88 million visitors

1. Bangkok, Thailand - 21.47 million visitors