Lisbon is the largest city in and capital of Portugal, covering an area of about 85 square kilometers. It is among the oldest cities in the world, with a history that goes as far back as 1200 BC according to certain records. There are a number of theories as to the origin of the city’s name. Some people believe that it was called ‘Allis Ubbo’, which is Phoenician for ‘safe harbor’. Another school of thought states that the city was named after the Tagus River, which was formerly known as ‘Lucio’ or ‘Lisso’. The city was established along this river. This is just one of the interesting facts about Lisbon. There are many other facts that you should know to make your visit even more fulfilling. The river itself has an interesting feature at its central basin. Do you know that the Tagur Estuary found here stretches for 14 kilometers? It is believed that the estuary can easily accommodate all the warships in the whole world!Lisbon is also known as “the city of seven steep hills”. The hills that give it this name are Graca, Estreal, Monte, Castelo, Penha de Franca, Penha de Franca and S.Pedro de Alcantara. You will be able to see the entire city from the top of any of these hills. The hills enhance the city’s visual appeal significantly. Another interesting fact about the city has to do with its streets, which are black and white. The streets were apparently designed in this way to commemorate part of the city’s history. The white color stands for the white clothes that the Christian Crusaders who conquered the Moors used to wear. The black color, on the other hand, stands for the black outfits that the highly regarded Saint Vincent of Lisbon used to wear. The buildings found in Lisbon are special. For example, you will hardly fail to take note of the Tower of Belem located by the Tagus River where it is the solitary fortress. The tower, which was built in 1515, is a symbol of Portuguese exploration. It was primarily built to maintain the harbor, although it was also used as a secure unit between the sixteenth and nineteenth centuries. The tower is a symbol of the country’s era of discovery. Apart from this, it will give you a great view of the rest of the city. There is a special Roman Underworld lying beneath the streets of the downtown shopping center. The underworld is made up of rooms, chambers, corridors and bridges. Metal blocks at the top of the Rua da Coneiao give access to the special site. Perhaps you have heard of the Lisbon earthquake? That massive earthquake destroyed 85% of the city on November 1, 1755 and was felt as far away as Scotland and Norway. Over 35,000 people died. The city was already among the largest in Europe, with a population of more than 200,000. The remains of the city were removed and it was redesigned in a modern manner under the direction of the Prime Minister, Sebasti”o Jos” de Carvalho e Melo.