Lisbon is the capital and the largest city of Portugal, with a population of 552,700. Its urban area extends beyond the city's administrative limits with a population of around 2.7 million people, being the 11th-most populous urban area in the European Union.
Lisbon is one of the oldest cities in the world, and the oldest in Western Europe, predating other modern European capitals such as London, Paris and Rome by centuries. Julius Caesar made it a municipium called Felicitas Julia, adding to the nameOlissipo. Ruled by a series of Germanic tribes from the 5th century, it was captured by the Moors in the 8th century. In 1147, the Crusaders under Afonso Henriques reconquered the city and since then it has been a major political, economic and cultural centre of Portugal. 
Lisbon enjoys a Mediterranean climate. Among all the metropoleis in Europe, it has the warmest winters, with average temperatures 15 °C (59 °F) during the day and 8 °C (46 °F) at night from December to February. The typical summer season lasts about six months, from May to October, although also in April temperatures sometimes reach around 25 °C (77.0 °F).


The name of Lisbon can be traced back to Phoenician times, according to one of several conjectures on the origin of Lisbon's toponymy, or alternatively, to the legend that Odysseus founded Lisbon.  Another conjecture suggests that the settlement took the name of the pre-Roman word for the Tagus (Lisso or Lucio). Lisbon's name was written Ulyssippo in Latin by the geographer Pomponius Mela, a native of Hispania. It was later referenced as "Olisippo" by Pliny the Elder and by the Greeks as Olissipo (λισσιπών) or Olissipona (λισσιπόνα).

HISTORY
Lusitanian raids and rebellions during Roman occupation necessitated the construction of a wall around the settlement. During Augustus' reign, the Romans also built a great theatre; the Cassian Baths (underneath Rua da Prata); temples to Jupiter, Diana, Cybele, Tethys and Idea Phrygiae (an uncommon cult from Asia Minor), in addition to temples to the Emperor; a large necropolis under Praça da Figueira; 

Following the disintegration of the Roman Empire there were barbarian invasions; between 409 and 429 the city was occupied successively by Sarmatians, Alans and Vandals. The Germanic Suebi, who established a kingdom in Gallaecia (modern Galicia and northern Portugal), with its capital in Bracara Augusta, also controlled the region of Lisbon until 585. In 585, the Suebi Kingdom was integrated into the Germanic Visigothic Kingdom of Toledo, which comprised all of the Iberian Peninsula: Lisbon was then calledUlishbona.


The Muslim influence is still visible present in the Alfama district, an old quarter of Lisbon that survived the 1755 Lisbon earthquake: many place-names are derived from Arabic and the Alfama (the oldest existing district of Lisbon) was derived from the Arabic "al-hamma".

After the 1755 earthquake, the city was rebuilt largely according to the plans of Prime Minister Sebastião José de Carvalho e Melo, the1st Marquess of Pombal; the lower town began to be known as the Baixa Pombalina (Pombaline central district). Instead of rebuilding the medieval town, Pombal decided to demolish what remained after the earthquake and rebuild the city centre in accordance with principles of modern urban design. It was reconstructed in an open rectangular plan with two great squares: the Praça do Rossio and the Praça do Comércio. The first, the central commercial district, is the traditional gathering place of the city and the location of the older cafés, theatres and restaurants; the second became the city's main access to the River Tagus and point of departure and arrival for seagoing vessels, adorned by a triumphal arch (1873) and monument to King Joseph I.

In the first years of the 19th century, Portugal was invaded by the troops of Napoléon Bonaparte, forcing Queen Maria I and Prince-Regent John (future John VI) to flee temporarily to Brazil. By the time the new King returned to Lisbon, many of the buildings and properties were pillaged, sacked or destroyed by the invaders.

During World War II, Lisbon was one of the very few neutral, open European Atlantic ports, a major gateway for refugees to the U.S. and a haven for spies. More than 100,000 refugees were able to flee Nazi Germany via Lisbon.

Lisbon was the site of three revolutions in the 20th century. The first, the 5 October 1910 revolution, brought an end to the Portuguese monarchy and established the highly unstable and corrupt Portuguese First Republic. The 6 June 1926 revolution would see the end of that first republic and firmly establish the Estado Novo, or the Portuguese Second Republic, as the ruling regime. The final revolution, theCarnation Revolution, would take place on 25 April 1974 and would end the right-wing Estado Novo and reform the country as the current Portuguese Third Republic.

In the 1990s, many of the districts were renovated and projects in the historic quarters were established to modernise those areas; architectural and patrimonial buildings were recuperated; the northern margin of the Tagus was re-purposed for leisure and residential use; the Vasco da Gama Bridge was constructed; and the eastern part of the municipality was re-purposed for Expo '98, to commemorate the 500th anniversary of Vasco da Gama's sea voyage to India, a voyage that would bring immense riches to Lisbon and cause many of Lisbon's landmarks to be built.


Alfama
The oldest district of Lisbon, it spreads down the southern slope from the Castle of São Jorge to the River Tagus. Its name, derived from the Arabic Al-hamma, means fountains or baths. During the Islamic invasion of Iberia, the Alfama constituted the largest part of the city, extending west to the Baixa neighbourhood. Increasingly, the Alfama became inhabited by fishermen and the poor: its fame as a poor neighbourhood continues to this day. 

 

Mouraria

The Mouraria, or Moorish quarter, is one of the most traditional neighborhoods of Lisbon,  although most of its old buildings were demolished by the Estado Novo between the 1930s and the 1970s.  It takes its name from the fact that after the reconquest of Lisbon, the Muslims who remained were confined to this part of the city.  In turn, the Jews were confined to three neighbourhoods called "Judiarias"

Bairro Alto (literally the upper quarter in Portuguese) is an area of central Lisbon that functions as a residential, shopping and entertainment district; it is the centre of the Portuguese capital's nightlife, attracting hipster youth and members of various music subcultures.

The heart of the city is the Baixa or city centre; the Pombaline Baixa is an elegant district, primarily constructed after the 1755 Lisbon earthquake, taking its name from its benefactor, 1st Marquess of Pombal, Sebastião José de Carvalho e Melo, who was the minister ofJoseph I of Portugal (1750–1777) and a key figure during the Portuguese Enlightenment.

Belém is famous as the place from which many of the great Portuguese explorers set off on their voyages of discovery. In particular, it is the place from which Vasco da Gama departed for India in 1497 and Pedro Álvares Cabral departed for Brazil in 1499. It is also a former royal residence and features the 17th–18th century Belém Palace, a former royal residence now occupied by the President of Portugal, and the Ajuda Palace, begun in 1802 but never completed.



Perhaps Belém's most famous feature is its tower, Torre de Belém, whose image is much used by Lisbon's tourist board. The tower was built as a fortified lighthouse late in the reign of Dom Manuel l (1515–1520) to guard the entrance to the port. It stood on a little island in right side of the Tagus, surrounded by water. Belém's other major historical building is the Mosteiro dos Jerónimos (Jerónimos Monastery), which the Torre de Belém was built partly to defend. Belém's most notable modern feature is the Padrão dos Descobrimentos (Monument to the Discoveries) built for the Portuguese World Fair in 1940. In the heart of Belém is the Praça do Império: gardens centred upon a large fountain, laid out during World War II. To the west of the gardens lies the Centro Cultural de Belém. Belém is one of the most visited Lisbon districts.
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