The structure uses unique methods of design, manufacture and installation to achieve the project aims of providing the first large scale portable structure to house the same events as a permanent arena. The structure was used for the first time on new years eve 1999 to herald the new millennium. It became the largest indoor celebration in the UK for the new millennium by accommodating 28,000 people inside the structure together with staging, light and sound equipment which cost £400,000 to hire for the night. 90% of the effects were suspended from the structure with a total flown load of 400 kN.

Valhalla, (named Tensile1 by the operating companies) was awarded the Guinness Book of Records  'World's Largest Portable Venue' in 2000. Since then, it has housed 'Victoria's Secrets' fashion show in New York,  the 'Ubuntu' exhibition at the 2002 Earth Summit in Johannesburg, and the MTV awards in Rome.