AUGUST 2015 CLUE: The open-plan work space of this two-story office building is noted for its glass ceiling and clerestory, reinforced-concrete columns, and furnishings all by the same architect.

AUGUST 2015 ANSWER: The answer to the August issue's Guess the Architect is FRANK LLOYD WRIGHT, who designed the SC Johnson Administration Building (1939) in Racine, Wisconsin. The dendriform columns of the Great Workroom are shown at left. For more details, including the winner, go to

AUGUST 2015 WINNER: David Bibliowicz, architectural designer, Skidmore, Owings & Merrill, San Francisco.

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