A follow-up to The Big Dig--a huge regional success!--the Big Dig that is transforming Boston"s downtown is the largest construction project in history. Through a gallery of nighttime photos you can stand at vantage points not even the construction workers have ever viewed. See how state-of-the-art underground and underwater tunnels are relieving traffic congestion as they replace the brutally ugly elevated highway, and how the city"s urban center is being re-connected to its glorious waterfront with beautiful open spaces and quiet urban parks.