Although the Good Friday accords brought a formal peace to Northern Ireland in 1998, the number of walls in Belfast city have quadrupled, and walls are now normalized and even ecofriendly. The most well-known wall separates the Protestant Shankill from the Catholic Falls. Known as the Peace Line, this structure went up as a temporary barrier of barbed wire and portable barriers between warring communities in the late 1960s. Each year, the structure has become more permanent and higher and now features a combination of chain link, concrete and metal. What is the story of this wall? Who built it, who crosses it, who maintains it, who opposes – or endorses – its continued existence? Lab co-director Robin Kirk’s book project The Biography of a Wall examines the lived experience of the wall and includes voices of people on both sides.