That's 35 floors, or 896 stairs - all for charity.
That's 828 steps. Just saying.
Not all changes to the skyline are additive.
Brise-soleil is your word of the day.
Feeling hot, hot, hot.
1. Find the Well of Souls.
Curvy skyscraper focusing sun's rays?
Photographs of the city's newest towers.
A free garden in the sky, coming soon to London.
The bulbous skyscraper appears on the skyline.
It's fat at the top and thin down below; some think it's great, but others say No! Work on the divisive 'walkie-talkie' tower on Fenchurch Street is under way.
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