This building's graceful swoop—a novelty when it went up—continues to offer an eye-pleasing respite from all the right angles surrounding it. And its spacious plaza, with a mosaic by Marc Chagall called The Four Seasons, is one of the most enjoyable public spaces in the neighborhood. Designed by Perkins & Will and C. F. Murphy Associates in 1969, the building has been home to a succession of financial institutions (its most recent name was Bank One Plaza); names aside, it remains one of the more distinctive buildings around, not to mention one of the highest buildings in the Loop's true heart.
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