The Big Dig House, a 4,000 sq. ft. home in Lexington built from recycled remains of the Big Dig, is for sale. According to the Boston Business Journal, the house is listed at $2.1M.

The house is quite impressive, and, as with anything related to the world's largest transportation construction project, it's big: "The home weighs nearly one million pounds or three times the weight of an average home and features 26-foot ceilings in the living room, a 1,000 square foot combined great room, kitchen and dining room and floor-to-ceiling windows."

The house is sustainable beyond its reclaimed materials. "Green features in the eco-friendly home include a seven-zone radiant heating controlled by a state-of-the-art computer system and a 600-gallon cistern below the garage floor which waters the rooftop garden."

"The Big Dig home won two international design awards as well as a residential architecture award from the Boston Society of Architects in 2006. It has also been featured on several television shows and is scheduled to be filmed next month for a show set to air on the Discovery Channel."

The home is being sold by William Raveis Real Estate, Mortgage & Insurance.