The Millennium Dome is an interesting one. It was a complete failure for the government since the targets were so unrealistic and they massively overhyped it. However it actually had very good visitor ratings  when it was open, it’s just that the media hated it. It’s also now become the worlds biggest music venue. I do see how it belongs in this museum though as a failure of project management, however going there was one of the best days of my childhood.