I went to a couple of high-rise viewing platforms in London today - The Lookout and Horizon 22. Both required booking tickets in advance, although at least they were free. And both buildings were located next to each other, so the views were somewhat similar. And it may have been an overcast day, but the views were great. Neither had full 360 degree views of the London skyline - but Horizon 22 is slightly higher (58th floor versus 50th floor), has more space (including a small cafe and better toilets - indeed The Lookout only has one stall for everybody) and a slightly wider view, but was a lot busier. Unfortunately I think it's nearly impossible to avoid getting reflections in the photos.
The Lookout
Horizon 22
I also did a bonus walk around Westminster while I was in town - I'll post some photos from that sometime next week.
