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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2025 JKO Celebration, October 6

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Events + Tours

TourIn Person
Sixth Avenue Modern
with John Arbuckle
Saturday, July 19 at 10:00 AM
Member: $25 | Non-member: $35
Buy Tickets
TourIn Person
Grand Central Terminal
with MAS Docent
Saturday, July 19 at 11:00 AM
Member: $25 | Non-member: $35
Buy Tickets
TourIn Person
Art Deco Upper Upper West Side
with Anthony W. Robins
Sunday, July 20 at 10:00 AM
Member: $25 | Non-member: $35
Buy Tickets
TourIn Person
Grand Central Terminal
with MAS Docent
Wednesday, July 23 at 11:00 AM
Member: $25 | Non-member: $35
Buy Tickets
TourIn Person
Brooklyn Heights South Side
with Matt Postal
Thursday, July 24 at 6:00 PM
Member: $25 | Non-member: $35
Buy Tickets
TourVirtual
Artist Colony in Taos, NM
with Sylvia Laudien-Meo
Friday, July 25 at 11:00 AM
Member: $15 | Non-member: $25
Buy Tickets
View All Events + Tours

Become a member and explore the five boroughs with MAS!

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Legacy

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