The James A. Burden and Otto Kahn Mansion is a pair of connected historic mansions on 91st Street between Fifth Avenue and Madison Avenue, widely regarded as the grandest block in New York. Part of the Convent of the Sacred Heart, the venue features Italian Renaissance architecture in the Otto Kahn Mansion and Golden Age grandeur in the James Burden Mansion. With crystal chandeliers, marble staircases, ornate ceilings, and a limestone courtyard overlooking Central Park, the venue offers an unparalleled palatial setting for weddings of up to 200 guests.