John Hancock Building building, and in 2011 conferred on it the Twenty-five Year Award. It has been the tallest building in Boston for more than 30 years and is the tallest building in New England. In 2002, Manulife Financial began construction of a 14-story building in the Seaport District at 601 Congress Street (Picture). The building was designed by Skidmore, Owings and Merrill LLP of Chicago, designers of the John Hancock Center in Chicago and the Sears Tower, also in Chicago. The building features a "green" (energy-efficient) dual glass curtain wall construction, making it among the first buildings in Boston to win national
Willis Tower unfinished World Trade Center to become the world's tallest building. The height was restricted by a limit imposed by the Federal Aviation Administration (FAA) to protect air traffic. The financing of the tower was provided by the Sears company. It was topped with two antennas to permit local television and radio broadcasts. Sears and the City of Chicago approved the design, and the first steel was put in place in April 1971. The structure was completed in May 1973. The construction cost about US$150 million at the time, equivalent to $ million in 2019. By comparison, Taipei 101, built in