Is this London's longest escalator?

Angel Tube station certainly has a run for its money. I'm not sure exactly how lofty these moving steps are, but they must surely be London's longest outdoor escalator.

This is the main entrance to Olympia's new village in the sky. The exhibition centre, now 140 years old, was in dire need of a refresh and, by heavens has it got one.

Last time we were up here, it was to walk over the roof of the centre's great hall which — little-known fact — is partially retractable. That great glass canopy now has a young upstart competing for your attention.

The faceted glazed canopy (520 panes, in case you care) was designed by the firm of Thomas Heatherwick, he of the 'Boris bus', Olympic cauldron, and the unbuilt Garden Bridge fame, along with SPPARC architects. It's a bobby-dazzler... though I'm not sure about the gappy bits, which might funnel wind and rain in inclement weather.