Some aren't so far-fetched, actually.
And Boris should be the first one down it.
Soon you can ride London's biggest helter skelter.
We talk virtual reality and charcoal chocolate with five experts.
Do you agree with our top 10?
Will this finally make people want to go?
Giant slides, hang-gliders, and decisions.
Plus you can go down the giant slides.
Form a queue now.
Londonist
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