Gudrun, from Jacksonville, USA sent me this nice postcard. As a maritime state with extensive coastline (about 1200 mile), Florida has many lighthouses of various construction. The thirty remaining historic lighthouses are a state treasure and each of these structures is unique in history and architecture. Once central to the economic growth and settlement of the United States, many of Florida's lighthouses face uncertain futures. Some need restoration and are not active nowadays. Some continue active and are open to visitors with their museums and gift shops. A lot of history and curiosity involve these buildings: Cape Canaveral Lighthouse, for instance, is one of the most highly restricted lighthouses in the country, being on Air Force restricted property, on a secured Air Force Base, and still partially under the Coast Guard.