On a clear day, just like the day as I took a spin on the London Eye, you can see as far as 25 miles. The all glass capsules of the observation wheel afford you 360° views over London. It's location right in the heart of the city mean many famous landmarks are clearly visible, including Buckingham Palace, St. Paul's Cathedral, the Gherkin in London City and of course the Houses of Parliament and Big Ben right across the Thames.
Completed in 1999 as part of London's millennium celebrations, the giant observation wheel is the tallest in Europe at 135-meters (443 ft). It moves at a slow, but steady pace with one revolution taking just around 30 minutes. Be prepared to hop on and off because the wheel does not usually stop.