From wikipedia about Lisbon
Lisbon is the capital city and largest city of Portugal
with a population of 545, 245 within its administrative limits River.
Lisbon is recognised as an alpha- city because of its importance in finance, commerce, media, entertainment, arts, international trade, education, and tourism. It is one of the major economic centres on the continent, with a growing financial centre and the largest/second largest container port in the "Europe's Atlantic coast",.
Lisbon is one of the oldest cities in the world, outdating other modern European capitals such as London, Paris and Rome by hundreds of years. Julius Caesar made it a municipium called Felicitas Julia, adding to the name Olissipo. Ruled by a series of Germanic tribes from the fifth century, it was captured by the Moors in the eighth century. In 1147, the Crusaders under Afonso Henriques reconquered the city for the Christians and since then it has been a major political, economic, and cultural centre of Portugal
. Unlike most capital cities, Lisbon's status as the capital of Portugal
has never been granted or confirmed officially – by statute or in written form. Its position as the capital has formed through constitutional convention, making its position as de facto capital a part of the Constitution of Portugal
Lisbon hosts two agencies of the European Union: the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA) and the European Maritime Safety Agency (EMSA). The Community of Portuguese Language Countries (CPLP) is also headquartered in Lisbon.
Lisbon has two sites listed by UNESCO as a World Heritage Site: Belém Tower and Jerónimos Monastery. Furthermore, in 1994, Lisbon was the European Capital of Culture and in 1998 organised an Expo '98 (1998 Lisbon World Exposition).
Lisbon enjoys a Mediterranean climate. Among all the metropolises in Europe, it has the warmest winters (together with Barcelona), with average temperatures during the day and at night in the period from December to February. The typical summer's season lasts about six months, from May to October, although also in November, March and April temperatures sometimes reach around.