The 60-story, 790-foot glass structure dominates Boston's skyline and towers over Copely Square. The 10,000 windows…More create an abstract, colorful reflection of the city, especially on a sunny day when the blue tint nearly matches the sky. With breathtaking views of Boston, it used to be a popular tourist attraction, but the 60th-floor observation deck has been closed since 9/11.
The building was a source of major controversy when built in 1976 by Henry Cobb, of the firm now know as Pei Cobb Freed & Partners. The sleek modern architecture stood in stark contrast to the historic Trinity Church across the street. And during construction, the floor-to-ceiling glass panes were notorious for falling out and crashing to the ground 790 feet below. Eventually they were replaced with heat-treated windows that could better handle the thermal pressure as air moved between the inner and outer panes.
John Hancock Insurance was the original tenant of the building, but relocated to 601 Congress Street in 2004. The John Hancock Tower is located next to the Old John Hancock building, built in 1947, and known for its pyramid top with a weather beacon that changes colors based on sun, clouds, wind and rain.