The Harry F. Sinclair House stands at the corner of East 79th Street and Fifth Avenue in Manhattan, New York City. It was built between 1897 and 1899, designed in a French Renaissance style by C. P. H. Gilbert and built by foreman Harvey Murdock. It was successively owned by businessmen Isaac D. Fletcher and Harry F. Sinclair, and then descendants of Peter Stuyvesant. The Ukrainian Institute of America acquired the mansion in 1955. It fell into disrepair and was renovated in the 1990s. The house was added to the National Register of Historic Places and named a National Historic Landmark in 1978. The building largely retains its original design, being constructed mainly of brick faced with limestone ashlar. The northern façade on 79th Street includes the main entrance and has multiple windows in square recesses or Gothic arches. The western façade is symmetrical and dominated by a curved pavilion. The interior has six floors, with a total floorspace of 20,000 square feet (1,900 m2). (Full article...)