Let's first start of with Ayers Rock. Ayers Rock is 862.5 metres above sea level (That is 345 metres above the ground.) It is 3.33 square kilometers.
It gets its beautiful red color from the decay of minerals and mechanical erosion.
It is located in Uluru National Park, in the Northern Territory of Australia.
The first white person to climb the mountain was William Christie Gosse in 1873.
The Harbor Bridge is one of the longest one-bow bridges in the world. It was there since 1932(nine years of construction).
It has a length of 1,150m.
It used up 53,000 tons of steel.
The locals call it the Coathanger.
It took 14 years (1959-1973) to complete the Opera House, and cost $102,000,000!
It was designed by a Danish architect named Jorn Utzon.
There are 4 houses with 5,000 places.
80% of the tickets are sold by subscription.
The Harbor Bridge and the Opera House are both partners.