The Packard Plant in Detroit is the pinnacle of quality urbex. It's a massive complex spanning 3.5 million sq ft and was reported to be home to 60 buildings. The entire manufacturing process was completed onsite, so all the components were made and assembled right on the premises. The Packard brand was a luxury vehicle manufacturer until its demise in the late 1950's. The Packard Plant, located in one of America's worst neighborhoods (say the newspapers), has sat vacant since. Many fires and movie shoots later (e.g. Transformers III), it still stands.
The enormity of the plant and history is nothing short of an urban explorer's wet dream. I could have spent days here. Instead, I got a few hours.
This is the third shot in my Project: Detroit series.