This UNESCO cover from Australia depicts 2 stamps of the same type celebrating 50 years of the
Sydney Opera House. The Sydney Opera House is an opera house and iconic building on the shores of Sydney Harbour, in Sydney, Australia. It is shaped like the sails of a boat. Many concerts and events take place there, with 2000 performances a year presented by Opera Australia, Australia's national opera company. It is a famous tourist attraction and a UNESCO World Heritage Site since 2007.
