Hiroshi Kawano
Red Tree
1972

Helmar Frank
Redundanz 0,32
undated

Josef Albers
Redwindow
1923

Francois Morellet
Relache02
1992

Manfred R. Schroeder
Relative Primzahlen
1972

Manfred Mohr
Relief 14/268 Auflösungszeichen
1968

Georg Nees
Relief in der Betonwand

Herman de Vries
Relief
1966/67

Vera Molnar
Repentirs
1992

William S. Maloney
Resurrection
1969

CTG Japan
Return to Square A
1967 / 68

CTG Japan
Return to Square B
1967 / 68

Heinrich Heidersberger
Rhythmogramm 3782/247

Petar Milojević
Ring Motif
1968

Roland K. Fuchshuber
Rocker
1960

Josef Albers
Rolled Wrongly
1931

Roman Verostko
Roman views angel choir fresco
1954

A. Michael Noll
Rotating Hypercubes

Herbert W. Franke
Rotationen
about 1970-73

Jean Tinguely
Rotozaza

Masao Kohmura / Koji Fujino / Makoto Ohtake / CTG Japan
Running Cola is Africa!
1968

Francois Morellet
Répartition
1961

Herbert W. Franke
Röntgenaufnahme
1958

Karl Otto Götz
Röst
1959

Herbert Brün
SAWDUST

Nicolas Schöffer
SCAM1
1973

Nicolas Schöffer
SECLUX15A
1973

Mark Wilson
SKEW FF10
1984

Iannis Xenakis
ST/!0
1962

Barbara Nessim
Salsa Samba
1979