The London Eye, also known as the Millennium Wheel, is the tallest (135 metres (443 ft)) Ferris wheel in Europe, and has become the most popular paid tourist attraction in the UK, visited by over 3 million people a year.
It was formally opened by the then Prime Minister, Tony Blair, at 20:00 GMT on December 31, 1999, although it was not opened to the public until March 2000 because of technical problems. Since its opening, the Eye, operated by Merlin Entertainments but sponsored by British Airways, has become a major landmark and tourist attraction.
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