Today, the garden of Florence’s Villa di Castello hosts the largest collection of potted citrus plants in the world—near 600 species and varieties, one of which was long thought extinct for more than a century and a half. Citrus Expert Paolo Galeotti saw a sprig of something he thought to be that variety—the three-fruit producing citrus bizzarria. He grafted it onto a plant and brought the species back to life. And this is only one example. Galeotti, director of the Parks and Gardens Office of the Tuscany Museum Centre, masterfully reintroduces dozen of citrus plants to the garden. He’s saving them before they’re gone forever. Read more at Atlas Obscura.