When the bridge goes up, the anticipation starts to grow. Crowds line up on both sides of the Blynman Canal to see what will happen. “I would like to say I have seen everything, but I know I haven’t,” said John Stevens, a Gloucester resident, Thursday as he watched boats passing through. The canal, built in 1643, is just 35… Boston Sep 26, 2019 Boston Duck Tours, one of the city’s most iconic tourist attractions, was expected to give a ride to its 12 millionth customer, Thursday. “We want to thank our loyal patrons, and also invite those who have not yet taken our award winning tour,” the company said in a release.