Where's the Door ?

It is not easy working out where the door is - or the doors are - on the side of this part of New Wakefield Street. This is essentially part of a railway viaduct wall on one side of Oxford Road Station

I have no idea what lies beyond this door. But whatever it is, like everywhere else it produces filled black bin bags.

Nearby, what can only be called Bracket "Art". See extra

Thanks to youoregon1 for hosting this challenge