Sydney Opera House (1954 - 73) Sydney, Australia

When the Sydney Opera House was finished in 1973, this landmark building - in the true sense of the expression, - put the whole continent of Australia on the world map. This building does not imitate or reflect what we generally imagine an opera house might look like, indeed, it is a completely abstract interpretation. The ability to create abstract art only developed after the invention of photography in the late 19th century, when painters first began to experiment with an abstract, cubist interpretation of reality.