Panama Canal - History of the Panama Canal, Darien scheme, Panama Railway, Nicaragua Canal, Separation of Panama from Colombia, John Frank Stevens, Panama Canal Zone, Health measures during the construction of the Panama Canal, Gaillard Cut, Panama Canal Locks, Isthmus of Panama, Panama Canal Authority, Panama Canal expansion project, Panama Canal expansion referendum, 2006, Torrijos-Carter Treaties, Panama Canal fence, Panama scandals, Harold Parfitt (Panama Canal)