This is kind of cool. An artist collective called Glowlab has taken it upon itself to document the last gasp of one Manhattan city block before it is leveled for construction of the New Museum of Contemporary Art. It puts its ongoing work into an interactive "psychogeographic" map that includes photos, text, videos, audio recordings, etc. basically creating a drill-down documentary of the life of a place before it changes forever.
I'm no art critic, but to me it's sort of an eerie statement about 9/11 and the role of memory and place.