Must know! Here are the 20 most expensive cities in the world

Know about the world's 20 most expensive cities.

Zee Media Bureau

London has been ranked as the world's most expensive city to live and work in, ahead of New York and Hong Kong, according to a UK study that puts Mumbai at 17th.

The only India city on the list of top 20, Mumbai is ranked 17th ahead only of Berlin, Johannesburg and Rio de Janeiro by the UK real estate firm Savills survey.

Here is the list of world's 20 most expensive cities:

1. London

2. New York

3. Hong Kong

4. Paris

5. Tokyo

6. San Francisco

7. Lagos

8. Singapore

9. Dubai

10. Sydney

11. Miami

12. Los Angeles

13. Moscow

14. Chicago

15. Shanghai

16. Dublin

17. Mumbai

18. Berlin

19. Johannesburg

20. Rio de Janeiro