10. Millennium Dome
The Millennium Dome, often referred to simply as The Dome, is the original name of a large dome-shaped building, originally used to house the Millennium Experience, a major exhibition celebrating the beginning of the third millennium. Located on the Greenwich Peninsula in South East London, England, the exhibition opened to the public on 1 January 2000 and ran until 31 December 2000. The project and exhibition was the subject of considerable political controversy as it failed to attract the number of visitors anticipated, leading to recurring financial problems.
While all of the original exhibition and associated complex has since been demolished, the canopy or shell of the dome still exists, and it is now a key exterior feature of the The O2 entertainment district.