The view from up there is amazing, you can see the...

The view from up there is amazing, you can see the Houses of Parliament, Big Ben (too bad is was all wrapped in scaffolding), the Treasury, the Thames.
I bought the tickets on-line from Merlin and I got an amazing price combined with Madame Tussaud's, I highly recommend the site!
The only downside was too many people in the cabin , compared to other cabins.
All in all, it is definitely worth a visit when in London!