1965-A particularly important chapter in its history is associated with 684 Park Avenue, the Oliver D. Filley House. In 1965, philanthropist Margaret Rockefeller Strong, Marquesa de Cuevas, saved the historic building from demolition and, together with the McMicking Foundation, donated it to the Institute. The building served as the Institute's headquarters for several decades and became an important venue for Spanish cultural life in New York, hosting exhibitions, lectures, performances, receptions, and other cultural programs.