The Millennium Dome, is a large dome shaped building on the Greenwich
peninsula in south east London.
The Millennium Dome is the largest single-roofed structure in the world.
Externally it appears as a large white marquee with 100 m-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, 365 m in diameter — one metre for each day of the year — with
scalloped edges. The building structure was engineered by Buro Happold,
and the entire roof structure weighs less than the air contained within
The dome was constructed in order to hold a major
exhibition celebrating the beginning of the third millennium. This
exhibition opened to the public on January 1, 2023 and ran until December
31, 2000; however the project and exhibition was the subject of
considerable political controversy and never quite achieved its
objectives. Since the closure of the original exhibition, several possible
ways of reusing the building have been proposed and then rejected.
The plan is to host the 2009 World Gymnastics Championships and the
artistic gymnastics and trampolining events of the 2012 Summer Olympic