With a diameter of 365 meters, The 02 is the largest dome in the world. Formerly named Millennium Dome, colloquially referred to simply as The Dome, is the original name of a large dome-shaped building, Located on the Greenwich Peninsula in South East London, England. The Prime Meridian passes the western edge of the Dome and the nearest London Underground station is North Greenwich on the Jubilee Line. Externally, it appears as a large white marquee with twelve 100m-high yellow support towers, one for each month of the year, or each hour of the clock face, representing the role played by Greenwich Mean Time. In plan view it is circular, 365m in diameter - one metre for each day of the year - with scalloped edges.

It has become one of the United Kingdom's most recognisable landmarks. It can easily be seen on aerial photographs of London. Its exterior is reminiscent of the Dome of Discovery built for the Festival of Britain in 1951. The Millennium Experience at the Dome was open to the public for the whole of 2000 after a private opening on the evening of 31 December 1999, and contained a large number of attractions and exhibits.

Millennium Dome

The interior space was subdivided into 14 zones namely Body, Mind, Faith (Faith zone was comprised of 5 sections: History of Christianity, Making of Key Life Experiences, How Shall I live?, Night Rain and Faith Festivals Calendar), Self Portrait, Work, Learning, Rest, Play, Talk, Money, Journey, Shared Ground (was made from recycled card), Living Island and Home Planet. Performance area in the centre of the dome was surrounded by the zones. The Millennium Dome Show, with music composed by Peter Gabriel and an acrobatic cast of 160, was performed 999 times over the course of the year.

There were other attractions as well. Inside the Dome there was Timekeepers of the Millennium, The Millennium Coin Minting Press, the 1951 Festival of Britain Bus, and the Millennium Star Jewels. Outside there was thirteen metres high Millennium Map, Looking Around (a hidden installation), the Childhood Cube, the Hanging Gardens at the front of the Dome, Greenwich Pavilion, as well as a number of other installations and sculpture. All of the original exhibition and associated complex has since been demolished.

Specialist cladding in roof creates optimum acoustic performance while the roof holds up to 120 tonnes of lighting and rigging. 23,000 capacity audience produced 1.7 million ticket sales in 2010. Over 70% of visitors arrive via public transport limiting environmental impact. The dome hosted London Olympics 2012 gymnastics tournaments.