Built in 1858, the Sydney Observatory is perched on Observatory Hill above The Rocks
, where it commands a fine view of the harbour
. It is the site of a former fortification, with the remnants of a wall constructed in 1804. It is the oldest observatory in Australia, with arguably one of the best city views. At the observatory you can look through the telescopes or visit the exhibitions about how Aboriginal people used the stars for navigation.
You can also fly through space in the 3D Space Theatre, or enjoy the gardens around the area. If you come at night time, the view of the sky through both the historical and modern telescopes is fascinating. Address: Watson Road, Observatory Hill, The Rocks, NSW, 2000.