The huge area in the center of Australia is commonly known as Central Australia or the Red Centre. It is an extensive region associated with the geographic center of the continent and includes the town of Alice Springs and its surroundings, as well as the vast desert interior. The Red Centre is known for its desert environment and iconic landmarks such as Uluru (Ayers Rock) and Kata Tjuta (the Olgas), which are part of the Uluru-Kata Tjuta National Park, a World Heritage site.
In summary:
- The large area is called Central Australia or the Red Centre.
- It includes Alice Springs, Uluru, and other parts of the desert interior.
- Known for its red desert landscapes and Aboriginal cultural significance.
If the question refers specifically to a huge natural landmark in this area, then Uluru (also known as Ayers Rock) is a famous large sandstone monolith located near the center of Australia.