For a more livable city from sidewalk to skyline
Advocacy
Protecting New York’s 80-acre network of public plazas and arcades
2000-present
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Events + Tours
Become a member to enjoy free tour tickets, event discounts, and access to members-only programs and content.
Learn about membership
On Social Media
@MASNYC
A cleaned up canal with a not-so-clear future in this #MASWeekendRead - New York Times
@MASNYC
Resilience and hope found in the rolling gates of our city's storefronts #MASWeekendRead - New York Times
@MASNYC
In this #MASWeekendRead, we reflect on the challenges we faced as a city over the last year - New York Times
This #TakeActionTuesday, fill out the public comment survey to help New York City develop its first Environmental Justice for All Report - NYC.gov