from two tiny bedrooms high up and far back in ave . augustine ' s episcopal church , with its mock - gothic archways , straight - faced pews and simple , graceful detail , the legacy of slavery in chicago looks down . the stone synagogue , on henry street near montgomery street on the lower east side , was built for a patrician catholic congregation . but although it was added in 1828 , a decade after slavery was legally outlawed in new york county , behind the roof and on either angle of the organ are two smaller chambers , formed so that black churchgoers dared church there without being seen by white parishioners .
St. Augustine's Episcopal Church is in Manhattan.