1. The art of the Venice Biennale

2. Visitors look at the installation at the Austria pavilion during the 57th La Biennale in Venice, Italy. REUTERS/Stefano Rellandini

3. Visitors take pictures at the installation called "Horse problem" by Argentinian artist Claudia Fontes. REUTERS/Stefano Rellandini

4. Chinese artist Ai Weiwei takes a selfie picture with two women in Venice. REUTERS/Stefano Rellandini

5. A visitor looks at his mobile phone as he visits the "Proper Time" installation by Lee Wan, at the Korean Pavilion. REUTERS/Stefano Rellandini

6. A visitor takes a picture at the installation called "Folly" by Phyllida Barlow, at the British Pavilion. REUTERS/Stefano Rellandini

7. Visitors look at the installation called "Rainbow" by Gyula Varnai at the Hungarian pavilion. REUTERS/Stefano Rellandini

8. A visitor passes in front of the installation called "Brezil" by Malian artist Abdoulaye Konate. REUTERS/Stefano Rellandini

9. Visitors look at the installation called "Imitazione di Cristo" of Roberto Cuoghi at the Italy pavilion. REUTERS/Stefano Rellandini

10. A visitor looks at the installation called "Lost and Found" by Sislej Xhafa at the Republic of Kosovo pavilion. REUTERS/Stefano Rellandini

11. Visitors look at the installation called "Reflection model" by Takahiro Iwasaki at the Japan pavilion. REUTERS/Stefano Rellandini

12. A visitor looks at the "Folly" installation by Phyllida Barlow, at the British Pavilion. REUTERS/Stefano Rellandini

13. Part of the installation called "Collection de Chaussures" by French artist Michel Blazy. REUTERS/Stefano Rellandini

14. A visitor looks at the installation called "Out of Disorder" by Takahiro Iwasaki at the Japan pavilion. REUTERS/Stefano Rellandini

15. A visitor looks at the installation called "Imitazione di Cristo" of Roberto Cuoghi at the Italy pavilion. REUTERS/Stefano Rellandini

16. Visitors look at the installation called "Medusa" by Mark Bradford at the United States pavilion. REUTERS/Stefano Rellandini

17. An artist performs at the Austria pavilion. REUTERS/Stefano Rellandini

18. A visitor looks at the installation called "Folly" by Phyllida Barlow at the British pavilion. REUTERS/Stefano Rellandini

19. Korean artist Cody Choi stands next to his installation called "Color Haze" at the Korean Pavilion. REUTERS/Stefano Rellandini

20. A visitor takes a selfie in front of an installation called "Escalade Beyond Chromatic Lands" by the American artist Sheila Hicks. REUTERS/Stefano Rellandini