At MuseumNext in Geneva we presented how at Southbank Centre we are approaching building an ‘open’ website as part of the Web We Want Festival. At the start of this journey, we posed the question: What does Open Web mean when it comes to designing and building your new website? Along the way we've worked in a glass box in full view of their users, met Tim Berners-Lee who wrote the first line of code, and debated long and hard about what the word open really means for the organisation and its community. We shared the lessons, tools, methods and technologies we used to help us tackle this challenge.