Not just the doorknob, or the door, but the whole building.
There one week and gone the next.
Not so much as a bit of debris left to let a passerby know what once was there.
Luckily I took a bunch of photos of it. I would have liked to have had a peek inside, but no such luck. Sad to say it probably all went to a landfill, and the empty lot will likely attract trash dumpers pretty soon.