• 
  U9503
  NON REALIZED PROJECTS - Christo and Jeanne-Claude
  01.01.1997
• 
  U9931
  Making for Art - 100 Unsucceeded Presentation - 1995, 1996,  - Yutaka Sone
  01.01.1994
• 
  U9572
  Engel-Detektor - Jakob Gautel & Jason Karaïndros
  01.01.1992
• 
  U9828
  Invitation Space No.1 - Tania Mouraud
  01.01.1970
• 
  U9988
  City Hall Tower Night Ilumination - Krysztof Wodiczko
  01.10.1987
• 
  U9253
  A FAIRLY TALL TOWER, 48,000 Miles High -  - Siah Armajani
  01.01.1969
• 
  U9953
  Temple of the western buddha (1971 Kathmedu) - Herman de Vries
  01.01.1974
• 
  U9983
  To Two Too; Hypothetical Monument for a Natural Disaster - Jeffrey Wisniewski
  01.01.1994
• 
  U9622
  119. PROJET DE DESTRUCTION DU MUSEE 1970 - 1971 - Jef Geys
  01.01.1970
• 
  U9913
  654 THINGS from The United States - Edward Ruscha
  01.01.1974
• 
  U9701
  Festival du film de famille - Pierre Huyghe
  01.01.1994
• 
  U9978
  Social Resource Project For the Munich Olympics - Stephen Willats
  01.01.1972
• 
  U9303
  PROPOSAL FOR SEATTLE ARTS COMMISSION, IN PUBLIC - Chris Burden
  01.06.1990
• 
  U9958
  Project for the Initiative Mahnmal Homosexuellenverfolgung, Frankfurt  - Jeff Wall
  01.01.1993
• 
  U9941
  No title, as the project only reached proposal stage - Rikrit Tiravanija
  01.01.1993

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