Sacred Aboriginal sandstone monoliths in central Australia. Inscribed 1987 (mixed).
From Wikipedia
Uluṟu-Kata Tjuṯa National Park is a protected area in the Northern Territory of Australia. The park is home to both Uluru and Kata Tjuta. It is located 1,943 kilometres (1,207 mi) south of Darwin by road and 440 kilometres (270 mi) south-west of Alice Springs along the Stuart and Lasseter Highways. The Outback Highway linking Western Australia and Queensland, and being developed as Australia's third east-west transcontinental route, shares the main road through the park.