On Sunday August 25, 2002 over 600,000 people toured the northbound section of the new Interstate 93 tunnel, one piece of the "Big Dig". This is the northbound entrance to the tunnel.
On Sunday August 25, 2002 over 600,000 people toured the northbound section of the new Interstate 93 tunnel, one piece of the "Big Dig". This is the northbound entrance to the tunnel.