The story of Torre del Falco—the Tower of the Falcon—begins in Italy’s hilly Tuscia region north of Rome. There, on the outskirts of the town of Ronciglione, Paola Igliori returned some years ago to her family’s estate, Villa Lina, a sprawling and picturesque property surrounded by the Cimini, a range of volcanic mountains. Igliori, a writer and filmmaker who had been living in New York City, inherited a 1920s villa, built on the remains of one erected more than two centuries earlier; an 18th-​century botanical garden; and a symbolic landscape created in the 1930s by the noted architect Raffaele de Vico. She now lives there full-time and has spent years…