Great Ocean Road. Thread closed
Jokes aside, there's plenty to see...Great Ocean Road, Mount Buller and Mount Bawbaw, Mount Dandenong, The Puffing Billy Railway, Eureka Skydeck, Melbourne Museum, Immigration Museum, Old Melbourne Gaol, Rialto Observation Deck (Choose 1 between Eureka and Rialto), National Gallery of Victoria, Royal Botanical Gardens to name some more in Victoria...
And ofcourse Melbourne Zoo, Taronga Zoo (Sydney), Healseville Sanctuary...there's also Grampians National Park etc...
In NT there's the Uluru (Ayers Rock), and I think kakadu National park is also in NT...