the jewel box - View this location on map 'sitting sternly, almost bunkerlike, on a busy downtown street, unity temple (708-383-8873) is one of wright's most influential buildings and a national historic landmark. the design of this still-operating unitarian universalist congregation resembles three giant children's blocks made of poured concrete. a guided tour leads you through the low, dark cloister and into the stunning high-ceilinged sanctuary filled with light filtered through art-glass windows. known as wright's jewel box, the intimate, minutely detailed interior is profoundly calming ($7 admission).'' New York Times 875 lake street, Oak Park, IL Cultural, Historical, Architectural

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