Hemingway House, where the writer lived from 1931 to 1939, and the Harry S. Truman Little White House, where the president spent 175 days of his time in office. Additionally, the residences of some historical Key West families are recognized on the National Register of Historic Places as important landmarks of history and culture, including the Porter House on Caroline Street and the Gato House on Virginia Street. Several historical residences of the Curry family remain extant, including the Benjamin Curry House, built by the brother of Florida's first millionaire, William Curry, as well as the Southernmost House and the Fogarty Mansion, built by the children of William Curry—his daughter Florida and son Charles, respectively. In addition to architecture, Old Town includes the Key West Cemetery, founded in 1847, containing above-ground tombs, notable epitaphs, and a plot where some of the dead from the 1898 explosion of are buried. Casa Marina The Casa Marina area takes its name from the Casa Marina Hotel, opened in 1921, the neighborhood's most conspicuous landmark. The Reynolds Street Pier, Higgs Beach, the West Martello Tower, the White Street Pier, and Rest Beach line the waterfront. Southernmost point in the United States One of the most popular attractions on the island is a concrete replica of a buoy at the corner of South and Whitehead Streets that claims to be the southernmost point in the contiguous United States. The point was originally marked with a basic sign. The city of Key West erected the current monument in 1983. The monument was repainted after damage by Hurricane Irma in 2017, and is the most often photographed tourist site in the Florida Keys. The monument is labeled "Southernmost point continental U.S.A.", though Whitehead Spit is the actual southernmost point of Key West, on the Truman Annex property just west of the buoy. The spit has no marker since it is on U.S. Navy land that cannot be entered by civilian tourists. The private property directly to the east of the buoy, and the beach areas of Truman Annex and Fort Zachary Taylor Historic State Park, also lie farther south than the buoy. The southernmost point of the contiguous United States is Ballast Key, a privately owned island just south and west of Key West. The southernmost location that the public can visit is the beach at Fort Zachary Taylor park. The monument states "90 Miles to Cuba",