Bellenta, an ancient castle with a history of nearly 500 years, is a famous landmark of Portugal and a symbol of Lisbon. It is not only a witness of Portugal's once glorious historical relics, but also a scenic spot for tourists from all over the world because of its unique architectural style and special geographical location. Bellenta was built in 1500. It has a history of more than 500 years. It was built by Portuguese Emperor Manu I to guard the port of Lisbon. Although it is called tower, it is more like a small fortress, standing on the Bank of the river. The whole tower is made of marble. It is the most magnificent and elegant building in Lisbon's numerous monuments.