When you come to Lisbon, you must go to see the product of the great maritime era - Belm Tower. In the past maritime era, it was the place to sail and return to the voyage. Whenever you return to the voyage, you can see the Belem Tower. The sailors will be very happy. Belm Tower is not only a classic landmark of the port of Portugal, but also a symbol of Lisbon. It has witnessed the long-distance and departure of countless ships in Portugal during the Great Navigation era, returning and reuniting. In 1983, Belm Tower was officially recognized as a World Cultural Heritage by the International UNESCO. In 2007, it was named one of the Seven Wonders of Portugal.