The monarch says she hopes the monument will "inspire present and future generations".
The row over delays in releasing the report comes as Baroness Scotland seeks a second term as the body's head.
Worthy Farm will welcome more than 200,000 festival-goers, but some have had to change their plans.
Campaigners hope the outcome of review into the pre-2000 ban will entitle them to compensation.
Newsbeat has been finding out about the individuals involved in the divisive climate action group.
CEO Secrets: Tej Lalvani, boss of Vitabiotics and former Dragons' Den star, shares his advice.
Rising food prices are sparking a "massive change in behaviour", the supermarket's chairman says.
A charity says mandatory checks in England's private rental sector had unearthed thousands of serious hazards.
Finance YouTubers are riding high as millions turn to them for advice and brands seek collaborations.
