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Great Ormond Street Hospital Charity and Outernet London partner on the Big Build Adventure

Harvey Marwood

By Harvey Marwood

Harvey Marwood

30 Jul 2025

Outernet, the most visited cultural attraction in the UK with more than 80 million visitors per year, have today announced the launch of the ‘Big Build Adventure’ with Great Ormond Street Hospital Charity.

As part of GOSH Charity’s Big Build Adventure, visitors can engage with a giant virtual Paint Workshop wall, a host of building games and a construction site selfie opportunity with the chance to feature on the big screen. With the opportunity to ‘buy a brick’, anyone stopping by can help GOSH Charity raise vital funds for the Children’s Cancer Centre, helping to build the future of children’s cancer care. 

From Wednesday August 6th until Sunday August 31st, the hospital’s ground-breaking Children’s Cancer Centre – which is currently under construction – will be brought to life at Outernet, which boasts the most advanced screens in the world, reaching four-storeys high and spanning 23,000 square feet.

As part of GOSH Charity’s Big Build Adventure, visitors can engage with a giant virtual Paint Workshop wall, a host of building games and a construction site selfie opportunity with the chance to feature on the big screen. With the opportunity to ‘buy a brick’, anyone stopping by can help GOSH Charity raise vital funds for the Children’s Cancer Centre, helping to build the future of children’s cancer care. 

The Paint Workshop screen will use motion-tracking cameras to turn paint gestures into actions, with virtual paint rollers, brushes, and splatter effects – allowing visitors to add splashes of colour to the virtual walls of the new Children’s Cancer Centre, illustrated by David Vallade and brought to life by Outernet Studios.

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