This really blew me away. I have seen long exposure photographs before where the shutter is left open for extended periods of time. Many of these shots range in time from a few seconds to five or more minutes. The effect can be really dramatic and can capture light, detail and movement in stunning and interesting ways. However, I have never heard of anything on this scale before. Michael Wesley has created photographs with a self built pinhole cameras with exposures as long as three years.
In 2001 he started shooting a series of photographs tracking the demolition and reconstruction of the Museum of Modern Art in NYC. He shot using four different pinhole cameras and left the shutter open for close to three years finishing in 2004.