2010

• 2009
  Technion Obelisk
  Haifa
• 2009
  Obelisco Plaza de Castilla
  Madrid

2005

• 2002
  SMU Meadows Museum Wave Sculpture
  Dallas

1995

• 1995
  Winking Eye
  Zurich
• 1993
  Shadow Machine
  New York

1985

• 1981
  Creative process fundamentals
  Zurich