The Castello Plan provides a detailed view of the layout and land use in New Amsterdam, including Fort Amsterdam, streets, homes and businesses, the canal, and the wall along the northern edge of the city that was built to keep the British out. The Castello Plan represents New Amsterdam around the peak of its settlement under the Dutch, with a population of several thousand. The name of the Castello Plan comes from the Villa di Castello, an estate near Florence, Italy, where the map was rediscovered in 1900. See also https://www.youtube.com/watch?v=J-DaWQV3pxw