From the old to the new. Before BBC Television Centre in west London closed for good, I captured its staircases, both well used and more hidden.

The corporation’s main headquarters in the capital is now New Broadcasting House, a hunk of glass and metal carefully spliced into the existing radio building.

I found a new stairwell at the back of the new shell, reaching down eight flights. The designers chose luminous yellow handrails, perhaps for health and safety reasons? Perhaps not, because you can find an open window next to the staircase, an escape route for those who need it…

Click first image to launch this gallery