Visitors take photographs under bamboo wind chimes, which are part of an installation by New Zealand artist Tiffany Singh titled "Knock On The Sky Listen To The Sound, 2011", at the 18th Biennale of Sydney on Cockatoo Island in Sydney Harbour July 11, 2012. The Biennale, entitled "all our relations", features the work of over 100 artists from more than 40 countries. REUTERS/Tim Wimborne (AUSTRALIA - Tags: SOCIETY TPX IMAGES OF THE DAY)