opened in 1903, it was considered the most advanced facility of its kind anywhere in the world. huge. epically proportioned. i mean 3.5 million square feet. now, one man lives here. al hill. >> my name's alan hill. welcome to my home. this room here is the forge room. it was a former packard motor car company. i started living here about seven years ago. at that time, semi-apprehensive about the place and the goings-on around here. turned out it's about peaceful as the north woods. not having a credit card or a mortgage payment or a car payment is a real blessing. there's still nails here. >> yep. >> what's happened here in detroit is unfortunate. but, you know, it's a sign of the times. we find out that not only does it take a village to raise an individual, it takes an entire world to support one city.