Offering breathtaking views across Sydney Harbour, Sydney Observatory is Australia’s oldest observatory and one of the most significant sites in the nation’s scientific history.

Explore more than 150 years of astronomy, meteorology and timekeeping. See remnants of the 1804 Fort Phillip, learn how Indigenous Australians navigated by the stars and discover many historic instruments including the original chronometer used by explorer Matthew Flinders to map Australia.
Visit the 3D Space Theatre and see the Universe come to life through amazing 3D technology. Take a tour up to the telescope domes and explore the southern skies, decode the flags on the reinstalled historic flagstaff, or simply enjoy the heritage gardens and harbour views.