Kykuit, the Rockefeller mansion in Pocantico Hills north of New York City, was built for John D. Rockefeller and completed in 1913 after a lengthy design process. Set on the highest point of the estate, it evolved into a four-story Classical Revival Georgian house with notable interiors, terraced Beaux-Arts gardens, and sweeping Hudson River views. Home to four generations of the Rockefeller family, it reflects the artistic influence of John D. Rockefeller Jr., Abby Aldrich Rockefeller, and especially Nelson Rockefeller, whose additions brought major modern art into the house, tunnels, and gardens. Now open to the public, Kykuit stands out for combining Gilded Age architecture, distinguished landscape design, and the legacy of a powerful American family.