The ruins of Roosevelt Island's smallpox hospital will be getting a little prettier next summer. Roosevelt Islander reports that artist Kathleen Griffin plans to bring 17 giant gold butterflies, each 10-feet wide, to the site, making it look like the insects are trying to carrying the hospital away. The butterflies will be suspended 18 to 36 feet above the building, and they'll be viewable from Manhattan and Queens. The hospital ruins will eventually be turned into the entrance pavilion for the FDR Four Freedoms Park, and this public art installation will take place during the new park's first full season. The project is sponsored by the New York Foundation for the Arts.