If you know one story about how the Sydney Opera House was built, the odds are that it's the one featuring Danish architect Jørn Utzon's brilliant design that, almost impossible to build, stirred some serious architectural drama.

50 years after the completion of one Australia's most famous landmarks, we look at a different story. One of invention, technological experimentation, and human ingenuity that changed the world of architecture.

In this Mashable Original, we speak to Arup deputy chair Tristram Carfrae and Lucciano Cardellicchio, senior lecturer in Architectural Construction at the University of New South Wales (UNSW) about the legacy of the Sydney Opera House, built on the point of Tubowgule, the name of the land as known by its Traditional Custodians, the Gadigal, of the Eora nation.