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Tickets
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Visit
Visit
Plan your visit
Tickets
Locations, hours, and admission
Map, audio, and more
Where to start
Visitor guidelines and policies
Frequently asked questions
Book a tour
Tips for visiting
Restaurants
Accessibility
Discounts
Families
Visit MoMA
PS1
Exhibitions and events
Exhibitions and events
In the galleries
Current and upcoming exhibitions
Exhibition history
What’s on
Events calendar
Film series
Performances
Art and artists
Art and artists
Explore our Collection
Art
Artists
Learn, read, watch
Audio
Magazine
Art terms
Online
courses
Youtube
Store
Search moma.org
Enter a term to search
Become a member
Log in
Art
terms
Art terms
Concrete art
Concrete art
Works
4 works online
Max Bill
Four Lines of Equal Length
1946
Jean Hélion
Equilibrium
1934
Theo van Doesburg
Simultaneous Counter-Composition
1929-30
Friedrich Vordemberge-Gildewart
Composition Number 23
1926
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