For a more livable city from sidewalk to skyline

what we stand for

Advocacy

public space atrium at Trump Tower, 590 Madison Avenue
Planning
Advocates for Privately Owned Public Space

Protecting New York’s 80-acre network of public plazas and arcades

2000–present
PlanningPolicyPreservation
Data Distillery

Data in translation

2024 - present
Preservation
Enduring Culture

Supporting, celebrating, and preserving diverse cultural heritage throughout NYC

2023 - present
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Celebrate excellence in architecture & urban design across New York City

Make a MASterworks nomination

Events + Tours

TourIn Person
Grand Central Terminal
with MAS Docent
Sunday, November 16 at 12:30 PM
Member: $25 | Non-member: $35
Learn More
TourIn Person
Park Avenue Modern
with John Arbuckle
Sunday, November 16 at 1:00 PM
Member: $25 | Non-member: $35
Learn More
TourIn Person
Grand Central Terminal
with MAS Docent
Wednesday, November 19 at 11:00 AM
Member: $25 | Non-member: $35
Buy Tickets
TourIn Person
Grand Central Terminal
with MAS Docent
Friday, November 21 at 12:30 PM
Member: $25 | Non-member: $35
Buy Tickets
TourIn Person
Cobble Hill in Brooklyn
with Zack Rhodes
Saturday, November 22 at 11:00 AM
Member: $25 | Non-member: $35
Buy Tickets
TourIn Person
Grand Central Terminal
with MAS Docent
Saturday, November 22 at 12:30 PM
Member: $25 | Non-member: $35
Buy Tickets
View All Events + Tours

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Legacy

Celebrating 130 years of advocacy on behalf of New York and New Yorkers.
Learn More
Vintage transit map for New York City
1903
Advocating for a Consolidated Transportation System
View Our Full History