The London Eye is a giant Ferris wheel situated on the banks of the River Thames, in London, England. The entire structure is 135 metres (443 ft) tall and the wheel has a diameter of 120 metres (394 ft).
It is the tallest Ferris wheel in Europe, and the most popular paid tourist attraction in the United Kingdom, visited by over 3.5 million people annually.
The London Eye was formally opened by the then Prime Minister, Tony Blair, on 31 December 1999, although it was not opened to the public until 9 March 2000 because of technical problems. Since its opening, the Eye has become a major landmark and tourist attraction.
In January 2011, a lighting-up ceremony marked the start of a three-year deal between nuclear company EDF Energy and Merlin Entertainment. Merlin said EDF would help it reduce the London Eye's overall carbon footprint using its expertise as the UK's largest producer of low-carbon electricity.
LONDON TRAVEL GUIDE: THE LONDON EYE