Since it's 1972 completion, the 601 foot-high CNA Plaza has had a dominant role in Chicago's skyline, not so much from the quality of its architecture, as from its fiery red color. It's a Miesian box devoid of Miesian grace - a heavy-boned structure with inset windows like morning-after eyes. The thick framing actually provides a larger canvass area for the red paint, helping the building stand out even more.
CNA Plaza was originally Continental Plaza III, an annex to the shorter, 333-foot Continental Plaza II, just to the north, which was repainted red to match it. Continental Plaza II, in turn, was built as an annex to the company's original home, the 1924 Strauss Building, at 310 South Michigan, the Mausoleum-topped tower (if only Artemisia had only had the presence of mind to replace the bronze chariot with a beehive borne by four bison), Chicago's first 30-story building, now a condo warren renamed the Metropolitan.
Over the years, CNA retrenched its operations into Plaza III alone. In 1999, Plaza II reverted to the gray of Naess & Murphy's original 1962 design. On III, now the CNA Tower, the red paint faded to a very tired, very flat ghost of its former glory. Until now. You can see the difference below.
Close up, the new paint job seems more orange than I remember, but from a distance it resolves into a deep flame red. The CNA now pops in the skyline with renewed vigor.