See spaces and infrastructure that are normally closed to the public.
What to expect
More than 300 drop-in and ticketed tours, talks, and open sites across New York City.
Good to know
- Check each listing for its exact time and access rules.
- Ticketed capacity is separate from free drop-in access.
Going? Keep it.
More festivals that weekend
Common questions
When is it?
Friday through Sunday, October 16-18, generally 10 AM-6 PM.
Is it free?
Most sites are free; some limited-capacity programs require tickets.