You can be sure that it's not about getting on any old big wheel! Since its construction in 1999, this attraction was the biggest structure of its kind with a cool 135 metres in height, until it was superseded in 2006 by the Star in Nanchang, China. It has only taken these few years to convert it into a representative part of the city's image, in its own right. Built over Jubilee Gardens, between the bridges of Westminster and Hungerford and a few steps from the Ministry of Defence, this peculiar viewpoint offers the most impressive panoramic view of the city and its outskirts that you can imagine. On a clear day, you can see as far as 25 miles (40 kilometres). This is obviously not recommended to those who suffer from vertigo. The Eye has 32 glass capsules which can hold up to 25 people and it's possible to reserve one, but at a much higher price of course. It's interesting that, to avoid the stopping and starting of its electric motors, it was designed in such a way that it constantly revolves at a low speed, in order to let people on as it keeps moving. This is why your trip lasts for thirty minutes, once you're on it.