Expo City Dubai will welcome the first visitors through its gates from Thursday, September 1, before a full relaunch in October.
Visitors can gain access to two of the anchor pavilions, Mobility and Terra, as part of a phased launch of the legacy site, a successor to the six-month world's fair bonanza that closed in late March.
Organisers on Monday said the move was the "first chapter of Expo City Dubai’s journey".
Garden in the Sky, with its 360-degree views, will also open on Thursday, with adult tickets priced at Dh30 each. Attractions are free for children aged 12 and under and People of Determination.
Alif and Terra will be open daily from 10am to 6pm, while Garden in the Sky will open from 3pm to 6pm, extending to 10am to 6pm from Friday, September 16 onwards.
The expanded Dubai Metro will serve visitors and staff.
Although some transitional work is still underway, "much of Expo City Dubai’s public realm will be open and is free to visit," organisers said in a statement on Monday.
Other Expo favourites – including Al Wasl Plaza, the Surreal water feature, the Women’s Pavilion and the Vision Pavilion, as well as children’s playgrounds and the carousel – will open from October 1.
Later this year, the Opportunity Pavilion will become the Expo 2020 Dubai Museum – a new addition highlighting the history and impact of World Expos.
In a statement, organisers said they were looking forward to the return of school trips, with the Expo School Programme preparing an "awe-inspiring and evolving array of immersive educational experiences, exhibits and interactive workshops, reflecting the themes of the pavilions".