This is a no-brainer and very much a tourist attraction. Most native Londoners that I know still think it is a blight on the city. Architecturally and aesthetically it doesn't really go with its surrounding, what with being straight across the Thames from the most quintessential image of London: Big Ben.
In any case, it is a fantastic thing to do if you really want to get a sense of the city from a birds eye view. It also gives a really clear view of lands to the south of London, beyond the city limits.
So I guess you can argue all day whether it adds to London's landscape or not, but it definitely is something every red blooded tourist should do.
HOW TO GET THERE: Hop on the tube at South Kensington and take the Circle or District Line to the Westmister Tube Station. Go up to street level and take a left to go across Westminster Bridge. Take a direct left after crossing the bridge and you'll head straight for the gigantic ferris wheel looking thing.
Final Project in Rome
5 years ago