Fisher Body Plant 21 is one of the more notable Detroit auto-plant ruins not too far from the central Downtown area.

I'm assuming it's still private property, but it has never seemed too boarded-up.

On my only visit to that site, there was no access to upper floors at all. I found no stairs or traffic-able road to the upper levels. Only street-level was accessible. Have any such paths/roads been removed?

The building was supposed to become a nightclub and artists' residence. but that was a number of years ago and the site still sits empty and abandoned.