Villa Marianna, designed by Danish architect and painter Mogens Tvede for Frank Miller Gould, grandson of railroad tycoon Jay Gould, was inspired by Spanish architecture and features courtyards, a formal garden, a fountain, and a tower. Built on Jekyll Island, where Gould spent his youth, the home later served as the headquarters for the Jekyll Island State Park Authority from 1950 to 1995. It is now an event venue.