The Historic Koreshan Settlement is a former community located in Estero, Florida, founded in the late 19th century by the religious leader Dr. Cyrus Teed. The settlement was established by the Koreshan Unity, a group that believed in a unique cosmology and the idea of a hollow Earth. The community thrived for several decades, promoting communal living, education, and alternative lifestyles. Today, the site is preserved as the Koreshan State Park, where visitors can explore the remaining structures, including a bakery, a general store, and a meditation hall. The park offers insights into the daily life and beliefs of the Koreshans, making it a valuable historical attraction.