Robert Menzies Institute to open at Melbourne University Weâre sorry, this service is currently unavailable. Please try again later. Dismiss Save Normal text size Advertisement Robert Menzies, Australiaâs longest serving prime minister, will be remembered with an institute and library at Melbourne University, as a push grows to better preserve prime ministersâ legacies. The Robert Menzies Institute will open in September inside the universityâs historic Old Quad. It will feature a library and museum as well as a research house dedicated to probing Menziesâ life, his term as prime minister, political ideals and impact on modern Australia.