Sydney Open

Sydney Open returns to the CBD with a program brimming with buildings and experiences that are set to unlock a new side to the city.

For one day only, go behind the scenes and explore places and spaces that are normally off limits to the public. Explore hidden heritage treasures, iconic landmarks, remarkable spaces and towering skyscrapers. Whether you're endlessly curious about architecture or passionate about Sydney's past, or simply love uncovering something new, Sydney Open is your invitation to see the city differently.

Discover all the buildings taking part in Sydney Open 2026 and purchase your tickets to join thousands of Sydneysiders and visitors for another unforgettable adventure.

Presented by Museums of History NSW, Sydney Open is a celebration of architecture and design. Since 1997, the Sydney Open program has welcomed over 115,000 attendees into some of the city's most architecturally significant and outstanding buildings.

Museums of History NSW members get more at Sydney Open, including exclusive access to a members-only building, discounted tickets and many more year-round benefits.