Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Convent of the Sacred Heart is a Latin Rite Catholic private, all-female school in the Manhattan borough of New York City, New York, United States. Teaching grades from pre-kindergarten through twelve, it is located on Manhattan's Upper East Side at East 91st Street and Fifth Avenue.The school is housed in the former Otto H. Kahn House and James A. Burden House, both of which are New York City-Designated Landmarks. It is one of the most-selective and expensive schools in Manhattan.