It's stood in the centre of Reading for almost 170 years housing thousands of prisoners, most famously, Oscar Wilde, but today the final inmates left Reading Prison.
Now a young offenders institute, the prison on Forbury Road can hold up to 320 men up to the age of 26.
But two months ago the Government said it was no longer fit for purpose and will close.
Today's shut-down has come a month early - and is a complete mistake according to the prison officers union.
Mel Bloor reports.
(Interviewees: Rob Wilson MP, Reading East, Conservative and Steve Gillan, Prison Officers Association General Secretary.)