LEEDS, England— The Henry Moore Foundation in Leeds has acquired the never-before-seen archives of the Public Art Development Trust, which commissioned public art projects and competitions in the U.K. from 1983 to 2004. The foundation is planning an exhibition this summer, "Art in Public Places," that will put plans for many of the proposed but never-realized projects on display, the Guardian reports.

Among the artworks that was never created is a memorial to Princess Diana by Julian Opie that involved three screens mounted alongside the Serpentine lake in Hyde Park. The middle screen would have shown one of the artist's signature line-drawing animations, while the side two would have projected images of rippling water.

Also included in the archive are proposed works by British artist Cornelia Parker, French conceptualist Daniel Buren, Laotian artist Vong Phaophanit, and German sculptor Katarina Fritsch.

"The archive covers a crucial period in British art, and maps the shift from monuments which may be quite contemporary in style but are made in very traditional materials like stone and bronze, to ideas which may not impact on their surroundings in any permanent way — such as Anya Gallaccio's proposal for beds of white flowers at King's Cross," said Stephen Feeke, curator of the exhibition, which will run at the foundation in Leeds from May 31 to August 30.