F.P. Nelson House, also known as The Towers, is a historic home located at Greencastle, Putnam County, Indiana. It was built between 1871 and 1875, and is a large two-story, Italianate style brick dwelling. It has a low hipped roof and sits on a stone foundation. The house features segmental arched openings, a projecting entrance bay, and two-story polygonal bay.[2]: 2