Uluru, named thus by the aboriginal tribe of Pintjantjatjara Anangu is also known as Ayers Rock and it is located in the Northern Territory in Central Australia. It is a large formation made out of sandstone and it it close to the town of Alice Springs. Uluru is part of the UNESCO World Heritage site and more important than that, it is a sacred place for the aborigenees. This particular land formation has many particular characteristics, one of them is being one of the largest sandstone formations in the world and also that most of its bulk lies beneath the ground, instead of outside. It is surrounded by lots of springs, waterholes, rock caves, and most importantly, it is filled with paintings from the aboriginal peoples. But probably the most remarkable thing about Uluru is the way that this landmark changes color depending on how the sun hits it at different times of the day, particularly during sunset and sunrise, when the rock takes on a deep red coloring. This is why the answer is the last one: It is most spectacular at sunrise when it appears deep red.