Prospecta Toyama '92 Observatory Tower, Imizu, Japan (1990-1993)
Part of:
  • Shoei Yoh (creator)
  • Shoei Yoh + Architects (architectural firm)
  • Shoei Yoh (architect)
  • Shoei Yoh (archive creator)

Prospecta Toyama '92 Observatory Tower, Imizu, Japan (1990-1993)



Level of archival description:
Extent and medium:
  • 207 drawings and reprographic copies
    4 bound volumes
    0,02 l.m. of textual records
    13 collages
    4 maps
    1 model
    1 presentation panel
Scope and content:
This file documents the executed project for the Prospecta Toyama '92 Observatory Tower in Imizu, Toyama, Japan. Like the Galaxy Toyama Gymnasium, this project was designed in conjunction with the 1st Japan Expo Toyama in 1992. The 30 x 32 x 32 metre structure, built at the top of a 61,2 metre hill, serves as a platform to observe the surrounding landscape. The centre court is designed and equipped for the creation of a performance with sound, light and fog.

The file is chiefly composed of design development and presentation drawings but includes some conceptual drawings and material related to theme development. There are also site plans and information about the 1st Japan Expo Toyama 1992. There is a small amount of correspondence in the form of facsimile transmissions. Working drawings include a set of structural drawings. Presentation material includes a model and bound copies and drafts of proposals. There are some digital prints of computer-generated perspectives, one in the form of a presentation panel. There is also some documentation for the development of the name and logo for the structure. A small album contains photographs of the built work. There is some promotional material for the tower and for the park in which it is situated. There are also clippings from published documents. Material in this file was produced between 1990 and 1993.
Reference number:


Material in this project series is not arranged.

Imizu-shi Japan

Related units of description:
  • Some material related to the Prospecta Toyama '92 Observatory Tower is present in the project file for the Galaxy Toyama Gymnasium (see ARCH269264, ARCH269352, ARCH269353, ARCH269493, ARCH269500, ARCH269516, ARCH269518, ARCH269525, ARCH269536).

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