So what do you think this is?

I took today's pic on the way out of the docks. I called in to Trinity Buoy Wharf, which is a little anomaly in the glittering new docklands that rose from the ashes of the old. Here, you can still find old, ramshackle, buildings, and even the new buildings are low rise and fit in with the old: a new arts and workshop centre is being built here. In one corner, huddled together as if to hide from the scrap man, is a rag-tag collection of old dock implements and machinery, with a couple of display boards explaing their function. This was a bag chute, used in warehouses and granaries to move bags between floors.

The best way to get here is by bike - I'll be back to show you some more of this corner of unseen London.