Australia is BIG, so what do you expect of its natural wonders ? You've guess it...they're also BIG such as ULURU - the "Rock formerly known as Ayers Rock"...till 1987. It's the largest free-standing rock monolith on earth. It's been shown countless of times on TV to symbolize the heart and soul of Outback and Aboriginal Australia. A 348 m high sandstone monolith, it has a circumference at its base of 9.4 km. Europeans called it Ayers Rock after South Australian Premier Sir Henry Ayers. ULURU, now used, is its rightful aboriginal name.
[for more Australian natural wonders: try the virtual tour on Australian Natural Scenic Wonders]