Overview: An extraordinary journey by Alberto Angela to the continent furthest from us and perhaps the least known: Australia. Why was it discovered just 250 years ago? Why are there animals very different from other continents? What is Ayers Rock, the enormous rock block located in the center of the continent, and why is it considered a sacred place by Aboriginal people? Is it true that Giuseppe Garibaldi was in Australia? These are some of the many curiosities that the episode answers. Just two and a half centuries ago, until James Cook's expedition, Australia was not even suspected of existence; and even today its interior - the so-called outback - behind the large coastal cities remains almost completely uninhabited and largely unexplored. There are many wonders and surprises that Ulysses reserves for us on this journey to discover the lesser-known aspects of Australia.