, One Dalton Street.0742 (226).7N 710502.2W /.345750N.083944W /.345750; -71.083944. Boston, the capital of the,.S. A b "One International Place". Financial District and, back Bay neighborhoods. The tallest structure in Boston is the 60- story 200 Clarendon, better known to locals as the John Hancock Tower, which rises 790 feet (241 m) in the Back Bay district. "Back Bay station to become a vision in glass". "Developers Propose New Gateway To TD Garden". Retrieved "Winthrop Square tower design finally approved - The Boston Globe". The "Year" column indicates the year when a building was completed.