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Although the Chicago Architecture Biennial (CAB) has begun to reveal the themes guiding this year’s exhibition, only a few details have slipped out regarding the physical content of the show. Rumors have it though that many of the large exhibition spaces within the Chicago Cultural Center will be organized by installations in which multiple participants have produced variations on a form or typology. One of these installations is reportedly going to be comprised of a room full of 16-foot-tall models of Tribune Tower submissions, each designed and fabricated by a different office. Many in Chicago are anxious to see which direction artistic directors Sharon Johnston and Mark Lee—both architects not professional curators—are going to take the largest North American architectural exhibition.