Oxford University professor makes Lego Hertford College Published duration 25 June 2015

image copyright Betty Longbottom/Dr Andrew Beaumont image caption Dr Beaumont put the last brick in place on Wednesday before taking a few days off

An Oxford University professor has created a Lego version of his college, complete with an "alien experimentation laboratory" and a graffiti tag.

It has taken Dr Andrew Beaumont six months to build, using 30,000 bricks to build the 6ft (1.82m)-long version of Hertford College.

Inside is a "Hogwarts-style" spiral staircase, copies of rooms and a Lego version of principal Will Hutton.

The model is to be unveiled at the college's open day on 1 July.

image copyright @DrBeauBeaumont image caption The painstaking replica took six months to build

image copyright Dr Andrew Beaumont image caption The model contains replicas of rooms inside the college

Dr Beaumont, a colonial historian, has previously made Lego versions of the 700-year-old college chapel and Bridge of Sighs.

His models, built in his spare time, are all constructed from memory. He does not use drawings or plans, he said.

Dr Beaumont said the bricks were sourced from distributors in Eastern Europe.

image copyright Hertford College image caption Most of the bricks in the replica were sourced from Eastern Europe while the balcony spindles were among the last left in Britain

image copyright Hertford College image caption Dr Beaumont made a Lego version of Oxford's Bridge of Sighs in 2014

image copyright David Hallam-Jones image caption Dr Beaumont said the Lego models show prospective students the college doesn't take itself 'too seriously'

The model includes two parts which have a QR code, enabling hopeful students to scan and view college's prospectus.