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The blue skies over Rio de Janeiro have been voted the best in the world, according to a new survey from travel site Expedia.com. The company made a list of the world’s top 20 blue skies, taking into account factors such as colour and density. The analysis was compiled by Anya Hohnbaum, of Expedia, who visited 20 countries in 72 days, covering 64,000 miles. Rio de Janeiro boasted the bluest sky in the world, followed by the Bay of Islands in New Zealand and Australia’s Ayers Rock. View the full report…

TOP 20 BLUE SKIES
1. Rio de Janeiro, Brazil
2. Bay of Islands, New Zealand
3. Ayers Rock, Australia
4. Denarau Island, Fiji
5. Cape Town, South Africa
6. Antananarivo, Madagascar
7. Karumba, The Maldives
8. Tokyo, Japan
9. Castell Dinas Bran, Wales
10. Long Beach, LA, USA
11. St Lucia, Caribbean
12. Dublin, Ireland
13. Marrakech, Morocco
14. Juneau, Alaska
15. Phnom-Penh, Cambodia
16. Amalfi Coast, Italy
17. Koh Samui, Thailand
18. Edinburgh, Scotland
19. Giza, Egypt
20. Cornwall, England