from The Guardian -
Henry Moore Foundation to showcase public art proposals that never made it
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An interesting archive of what could have been commissioned to grace various public spaces in the UK:

"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."

Much could also be learn from what-was-not and not just from conventional heritage artefacts of what-has-been.