200+ sites. Three days. One citywide festival.
Save the date: October 17-19, 2025
Each October, Open House New York Weekend offers unparalleled access to the best of New York City’s built environment by unlocking more than 200 sites across the city for tours, talks, and exploration.
The majority of OHNY Weekend sites are open free of charge, allowing 50,000+ visitors to experience, and to be inspired by, the architecture and design that define our city.
As you mark October 17-19 on your calendar for the 2025 OHNY Weekend, please consider supporting our work in the following ways:
“[W]here else can you peek inside the city’s teeming municipal archives warehouse, pop into a Brooklyn seltzer factory, and get a hard-hat tour of a multimillion-dollar condo by the architects who designed it — all before brunch?” – Hyperallergic
2024 Photo Gallery
Open House New Yorkers sound off:
“What do you love about OHNY Weekend?”
Letting people know that they can actually visit these cool NYC sites for free and seeing their faces light up in excitement.
Rowie S.
Each year I build a complex scheduling spreadsheet to maximize the number of OHNY Weekend sites I can visit. Don’t you?
Mohit S.
My favorite OHNY Weekend memory is signing my name on 1 WTC—being a permanent part of this iconic building!
Caroline O.
I want to sneak into every building.
Marc N.
Seeing the little details we are usually too busy to notice.
Valerie A.
OHNY Weekend is the ultimate opportunity to learn and experience what you mistakenly thought you already knew about NYC.
Eric A.
New York is not monolithic! It’s open and complex!
Saundra T.
I discovered Bronx Community College through OHNY Weekend. I love Marcel Breuer and was fascinated by the campus. I was literally high on architecture that day.
Fatih E.
It’s like Christmas (for us agnostic, non-religious urbanist nerds)! It is the most wonderful time of the year.
Julie R.