Spain's Princess Letizia (2nd L) and Prince Felipe (3rd L) and Panama's First Lady Marta Linares de Martinelli (R) leave a public ceremony ahead of the 500th anniversary in 2013 of the discovery of the "South Sea," or Pacific Ocean, by Spanish explorer Vasco Nunez de Balboa, in Panama City on October 3. Prince Felipe and his wife Princess Letizia are on a two-day official visit to Panama. - Reuters/Carlos Jasso