Documentary

This is a pretty amazing documentary I found on Vimeo.
Urban historian Steve and film-maker Andrew created this guerrilla documentary.

"As an urban historian & photographer, I try to peel back the layers of a city to see what's underneath. From the tops of bridges to the depths of sewer tunnels, these explorations of the urban environment help me puzzle together the interconnected, multi-dimensional history and complexity of the great metropolises of the world."  

{Steves Blog}